Implement month separator for the Gallery.

Improve day separator rendering in the timeline. Use Today, Yesterday, and the name of the day if less than 7 days and do not render the year for the current year. Improve date format for the media viewer. Rework how date and time are computed. ActionListView: Time can take more space, so update the layout.
2024-12-11 23:43:20 +01:00
parent 91444aee67
commit 4188d58b56
60 changed files with 1271 additions and 351 deletions
--- a/libraries/dateformatter/api/src/main/kotlin/io/element/android/libraries/dateformatter/api/DateFormatter.kt
+++ b/libraries/dateformatter/api/src/main/kotlin/io/element/android/libraries/dateformatter/api/DateFormatter.kt
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2024 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Please see LICENSE in the repository root for full details.
+ */
+
+package io.element.android.libraries.dateformatter.api
+
+interface DateFormatter {
+    fun format(
+        timestamp: Long?,
+        mode: DateFormatterMode = DateFormatterMode.Full,
+        useRelative: Boolean = false,
+    ): String
+}
+
+enum class DateFormatterMode {
+    Full,
+    Month,
+    Day,
+    // Time if same day, else date
+    TimeOrDate,
+    // Only time whatever the day
+    TimeOnly,
+}
--- a/libraries/dateformatter/api/src/main/kotlin/io/element/android/libraries/dateformatter/api/DaySeparatorFormatter.kt
+++ b/libraries/dateformatter/api/src/main/kotlin/io/element/android/libraries/dateformatter/api/DaySeparatorFormatter.kt
@@ -1,12 +0,0 @@
-/*
- * Copyright 2023, 2024 New Vector Ltd.
- *
- * SPDX-License-Identifier: AGPL-3.0-only
- * Please see LICENSE in the repository root for full details.
- */
-
-package io.element.android.libraries.dateformatter.api
-
-interface DaySeparatorFormatter {
-    fun format(timestamp: Long): String
-}
--- a/libraries/dateformatter/api/src/main/kotlin/io/element/android/libraries/dateformatter/api/LastMessageTimestampFormatter.kt
+++ b/libraries/dateformatter/api/src/main/kotlin/io/element/android/libraries/dateformatter/api/LastMessageTimestampFormatter.kt
@@ -1,12 +0,0 @@
-/*
- * Copyright 2023, 2024 New Vector Ltd.
- *
- * SPDX-License-Identifier: AGPL-3.0-only
- * Please see LICENSE in the repository root for full details.
- */
-
-package io.element.android.libraries.dateformatter.api
-
-fun interface LastMessageTimestampFormatter {
-    fun format(timestamp: Long?): String
-}
--- a/libraries/dateformatter/impl/build.gradle.kts
+++ b/libraries/dateformatter/impl/build.gradle.kts
@@ -16,15 +16,29 @@ setupAnvil()
 android {
    namespace = "io.element.android.libraries.dateformatter.impl"

+    testOptions {
+        unitTests {
+            isIncludeAndroidResources = true
+        }
+    }
+
    dependencies {
        implementation(libs.dagger)
+        implementation(projects.libraries.core)
        implementation(projects.libraries.di)
+        implementation(projects.libraries.uiStrings)
+        implementation(projects.services.toolbox.api)

        api(projects.libraries.dateformatter.api)
        api(libs.datetime)

        testImplementation(libs.test.junit)
        testImplementation(libs.test.truth)
+        testImplementation(libs.test.turbine)
+        testImplementation(libs.test.robolectric)
        testImplementation(projects.libraries.dateformatter.test)
+        testImplementation(projects.services.toolbox.test)
+        testImplementation(projects.tests.testutils)
+        testImplementation(libs.androidx.compose.ui.test.junit)
    }
 }
--- a/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/DateFormatterDay.kt
+++ b/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/DateFormatterDay.kt
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2024 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Please see LICENSE in the repository root for full details.
+ */
+
+package io.element.android.libraries.dateformatter.impl
+
+import com.squareup.anvil.annotations.ContributesBinding
+import io.element.android.libraries.core.extensions.safeCapitalize
+import io.element.android.libraries.di.AppScope
+import javax.inject.Inject
+
+interface DateFormatterDay {
+    fun format(
+        timestamp: Long,
+        useRelative: Boolean,
+    ): String
+}
+
+@ContributesBinding(AppScope::class)
+class DefaultDateFormatterDay @Inject constructor(
+    private val localDateTimeProvider: LocalDateTimeProvider,
+    private val dateFormatters: DateFormatters,
+) : DateFormatterDay {
+    override fun format(
+        timestamp: Long,
+        useRelative: Boolean,
+    ): String {
+        val dateToFormat = localDateTimeProvider.providesFromTimestamp(timestamp)
+        val today = localDateTimeProvider.providesNow()
+        return if (useRelative) {
+            val dayDiff = today.date.toEpochDays() - dateToFormat.date.toEpochDays()
+            when (dayDiff) {
+                0 -> dateFormatters.getRelativeDay(timestamp, "Today")
+                1 -> dateFormatters.getRelativeDay(timestamp, "Yesterday")
+                else -> if (dayDiff < 7) {
+                    dateFormatters.formatDateWithDay(dateToFormat)
+                } else {
+                    if (today.year == dateToFormat.year) {
+                        dateFormatters.formatDateWithFullFormatNoYear(dateToFormat)
+                    } else {
+                        dateFormatters.formatDateWithFullFormat(dateToFormat)
+                    }
+                }
+            }
+        } else {
+            if (today.year == dateToFormat.year) {
+                dateFormatters.formatDateWithFullFormatNoYear(dateToFormat)
+            } else {
+                dateFormatters.formatDateWithFullFormat(dateToFormat)
+            }
+        }
+            .safeCapitalize()
+    }
+}
--- a/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/DateFormatterFull.kt
+++ b/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/DateFormatterFull.kt
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2024 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Please see LICENSE in the repository root for full details.
+ */
+
+package io.element.android.libraries.dateformatter.impl
+
+import io.element.android.services.toolbox.api.strings.StringProvider
+import javax.inject.Inject
+
+class DateFormatterFull @Inject constructor(
+    private val stringProvider: StringProvider,
+    private val localDateTimeProvider: LocalDateTimeProvider,
+    private val dateFormatters: DateFormatters,
+    private val dateFormatterDay: DateFormatterDay,
+) {
+    fun format(
+        timestamp: Long,
+        useRelative: Boolean,
+    ): String {
+        val dateToFormat = localDateTimeProvider.providesFromTimestamp(timestamp)
+        val time = dateFormatters.formatTime(dateToFormat)
+        return if (useRelative) {
+            val now = localDateTimeProvider.providesNow()
+            if (now.date == dateToFormat.date) {
+               time
+            } else {
+                val dateStr = dateFormatterDay.format(timestamp, true)
+                stringProvider.getString(R.string.common_date_date_at_time, dateStr, time)
+            }
+        } else {
+            val dateStr = dateFormatters.formatDateWithFullFormat(dateToFormat)
+            stringProvider.getString(R.string.common_date_date_at_time, dateStr, time)
+        }
+    }
+}
--- a/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/DateFormatterMonth.kt
+++ b/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/DateFormatterMonth.kt
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2024 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Please see LICENSE in the repository root for full details.
+ */
+
+package io.element.android.libraries.dateformatter.impl
+
+import io.element.android.libraries.core.extensions.safeCapitalize
+import io.element.android.services.toolbox.api.strings.StringProvider
+import javax.inject.Inject
+
+class DateFormatterMonth @Inject constructor(
+    private val stringProvider: StringProvider,
+    private val localDateTimeProvider: LocalDateTimeProvider,
+    private val dateFormatters: DateFormatters,
+) {
+    fun format(
+        timestamp: Long,
+        useRelative: Boolean,
+    ): String {
+        val today = localDateTimeProvider.providesNow()
+        val dateToFormat = localDateTimeProvider.providesFromTimestamp(timestamp)
+        return if (useRelative && dateToFormat.month == today.month && dateToFormat.year == today.year) {
+            stringProvider.getString(R.string.common_date_this_month)
+        } else {
+            dateFormatters.formatDateWithMonthAndYear(dateToFormat)
+        }
+            .safeCapitalize()
+    }
+}
--- a/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/DefaultLastMessageTimestampFormatter.kt
+++ b/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/DefaultLastMessageTimestampFormatter.kt
@@ -1,5 +1,5 @@
 /*
- * Copyright 2023, 2024 New Vector Ltd.
+ * Copyright 2024 New Vector Ltd.
 *
 * SPDX-License-Identifier: AGPL-3.0-only
 * Please see LICENSE in the repository root for full details.
@@ -7,18 +7,16 @@

 package io.element.android.libraries.dateformatter.impl

-import com.squareup.anvil.annotations.ContributesBinding
-import io.element.android.libraries.dateformatter.api.LastMessageTimestampFormatter
-import io.element.android.libraries.di.AppScope
 import javax.inject.Inject

-@ContributesBinding(AppScope::class)
-class DefaultLastMessageTimestampFormatter @Inject constructor(
+class DateFormatterTime @Inject constructor(
    private val localDateTimeProvider: LocalDateTimeProvider,
    private val dateFormatters: DateFormatters,
-) : LastMessageTimestampFormatter {
-    override fun format(timestamp: Long?): String {
-        if (timestamp == null) return ""
+) {
+    fun format(
+        timestamp: Long,
+        useRelative: Boolean,
+    ): String {
        val currentDate = localDateTimeProvider.providesNow()
        val dateToFormat = localDateTimeProvider.providesFromTimestamp(timestamp)
        val isSameDay = currentDate.date == dateToFormat.date
@@ -30,7 +28,7 @@ class DefaultLastMessageTimestampFormatter @Inject constructor(
                dateFormatters.formatDate(
                    dateToFormat = dateToFormat,
                    currentDate = currentDate,
-                    useRelative = true
+                    useRelative = useRelative,
                )
            }
        }
--- a/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/DateFormatterTimeOnly.kt
+++ b/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/DateFormatterTimeOnly.kt
@@ -0,0 +1,22 @@
+/*
+ * Copyright 2024 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Please see LICENSE in the repository root for full details.
+ */
+
+package io.element.android.libraries.dateformatter.impl
+
+import javax.inject.Inject
+
+class DateFormatterTimeOnly @Inject constructor(
+    private val localDateTimeProvider: LocalDateTimeProvider,
+    private val dateFormatters: DateFormatters,
+) {
+    fun format(
+        timestamp: Long,
+    ): String {
+        val dateToFormat = localDateTimeProvider.providesFromTimestamp(timestamp)
+        return dateFormatters.formatTime(dateToFormat)
+    }
+}
--- a/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/DateFormatters.kt
+++ b/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/DateFormatters.kt
@@ -7,57 +7,63 @@

 package io.element.android.libraries.dateformatter.impl

-import android.text.format.DateFormat
 import android.text.format.DateUtils
+import io.element.android.libraries.di.AppScope
+import io.element.android.libraries.di.SingleIn
 import kotlinx.datetime.Clock
 import kotlinx.datetime.LocalDateTime
 import kotlinx.datetime.toInstant
 import kotlinx.datetime.toJavaLocalDate
 import kotlinx.datetime.toJavaLocalDateTime
+import timber.log.Timber
 import java.time.Period
-import java.time.format.DateTimeFormatter
-import java.time.format.FormatStyle
 import java.util.Locale
 import javax.inject.Inject
 import kotlin.math.absoluteValue

+@SingleIn(AppScope::class)
 class DateFormatters @Inject constructor(
-    private val locale: Locale,
+    localeChangeObserver: LocaleChangeObserver,
    private val clock: Clock,
    private val timeZoneProvider: TimezoneProvider,
-) {
-    private val onlyTimeFormatter: DateTimeFormatter by lazy {
-        DateTimeFormatter.ofLocalizedTime(FormatStyle.SHORT).withLocale(locale)
+) : LocaleChangeListener {
+    init {
+        localeChangeObserver.addListener(this)
    }

-    private val dateWithMonthFormatter: DateTimeFormatter by lazy {
-        val pattern = DateFormat.getBestDateTimePattern(locale, "d MMM") ?: "d MMM"
-        DateTimeFormatter.ofPattern(pattern, locale)
-    }
+    private var dateTimeFormatters: DateTimeFormatters = DateTimeFormatters(Locale.getDefault())

-    private val dateWithYearFormatter: DateTimeFormatter by lazy {
-        val pattern = DateFormat.getBestDateTimePattern(locale, "dd.MM.yyyy") ?: "dd.MM.yyyy"
-        DateTimeFormatter.ofPattern(pattern, locale)
-    }
-
-    private val dateWithFullFormatFormatter: DateTimeFormatter by lazy {
-        DateTimeFormatter.ofLocalizedDate(FormatStyle.FULL).withLocale(locale)
+    override fun onLocaleChange() {
+        Timber.w("Locale changed, updating formatters")
+        dateTimeFormatters = DateTimeFormatters(Locale.getDefault())
    }

    internal fun formatTime(localDateTime: LocalDateTime): String {
-        return onlyTimeFormatter.format(localDateTime.toJavaLocalDateTime())
+        return dateTimeFormatters.onlyTimeFormatter.format(localDateTime.toJavaLocalDateTime())
+    }
+
+    internal fun formatDateWithMonthAndYear(localDateTime: LocalDateTime): String {
+        return dateTimeFormatters.dateWithMonthAndYearFormatter.format(localDateTime.toJavaLocalDateTime())
    }

    internal fun formatDateWithMonth(localDateTime: LocalDateTime): String {
-        return dateWithMonthFormatter.format(localDateTime.toJavaLocalDateTime())
+        return dateTimeFormatters.dateWithMonthFormatter.format(localDateTime.toJavaLocalDateTime())
+    }
+
+    internal fun formatDateWithDay(localDateTime: LocalDateTime): String {
+        return dateTimeFormatters.dateWithDayFormatter.format(localDateTime.toJavaLocalDateTime())
    }

    internal fun formatDateWithYear(localDateTime: LocalDateTime): String {
-        return dateWithYearFormatter.format(localDateTime.toJavaLocalDateTime())
+        return dateTimeFormatters.dateWithYearFormatter.format(localDateTime.toJavaLocalDateTime())
    }

    internal fun formatDateWithFullFormat(localDateTime: LocalDateTime): String {
-        return dateWithFullFormatFormatter.format(localDateTime.toJavaLocalDateTime())
+        return dateTimeFormatters.dateWithFullFormatFormatter.format(localDateTime.toJavaLocalDateTime())
+    }
+
+    internal fun formatDateWithFullFormatNoYear(localDateTime: LocalDateTime): String {
+        return dateTimeFormatters.dateWithFullFormatNoYearFormatter.format(localDateTime.toJavaLocalDateTime())
    }

    internal fun formatDate(
@@ -75,12 +81,12 @@ class DateFormatters @Inject constructor(
        }
    }

-    private fun getRelativeDay(ts: Long): String {
+    internal fun getRelativeDay(ts: Long, default: String = ""): String {
        return DateUtils.getRelativeTimeSpanString(
            ts,
            clock.now().toEpochMilliseconds(),
            DateUtils.DAY_IN_MILLIS,
            DateUtils.FORMAT_SHOW_WEEKDAY
-        )?.toString() ?: ""
+        )?.toString() ?: default
    }
 }
--- a/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/DateTimeFormatters.kt
+++ b/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/DateTimeFormatters.kt
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2024 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Please see LICENSE in the repository root for full details.
+ */
+
+package io.element.android.libraries.dateformatter.impl
+
+import android.text.format.DateFormat
+import java.time.format.DateTimeFormatter
+import java.time.format.FormatStyle
+import java.util.Locale
+
+class DateTimeFormatters(
+    private val locale: Locale,
+) {
+    val onlyTimeFormatter: DateTimeFormatter by lazy {
+        DateTimeFormatter.ofLocalizedTime(FormatStyle.SHORT).withLocale(locale)
+    }
+
+    val dateWithMonthAndYearFormatter: DateTimeFormatter by lazy {
+        val pattern = bestDateTimePattern("MMMM YYYY")
+        DateTimeFormatter.ofPattern(pattern, locale)
+    }
+
+    val dateWithMonthFormatter: DateTimeFormatter by lazy {
+        val pattern = bestDateTimePattern("d MMM")
+        DateTimeFormatter.ofPattern(pattern, locale)
+    }
+
+    val dateWithDayFormatter: DateTimeFormatter by lazy {
+        val pattern = bestDateTimePattern("EEEE")
+        DateTimeFormatter.ofPattern(pattern, locale)
+    }
+
+    val dateWithYearFormatter: DateTimeFormatter by lazy {
+        val pattern = bestDateTimePattern("dd.MM.yyyy")
+        DateTimeFormatter.ofPattern(pattern, locale)
+    }
+
+    val dateWithFullFormatFormatter: DateTimeFormatter by lazy {
+        DateTimeFormatter.ofLocalizedDate(FormatStyle.LONG).withLocale(locale)
+    }
+
+    val dateWithFullFormatNoYearFormatter: DateTimeFormatter by lazy {
+        val pattern = DateFormat.getBestDateTimePattern(locale, "EEEE d MMMM") ?: "EEEE d MMMM"
+        DateTimeFormatter.ofPattern(pattern, locale)
+    }
+
+    private fun bestDateTimePattern(pattern: String): String {
+        return DateFormat.getBestDateTimePattern(locale, pattern) ?: pattern
+    }
+}
--- a/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/DefaultDateFormatter.kt
+++ b/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/DefaultDateFormatter.kt
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2024 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Please see LICENSE in the repository root for full details.
+ */
+
+package io.element.android.libraries.dateformatter.impl
+
+import com.squareup.anvil.annotations.ContributesBinding
+import io.element.android.libraries.dateformatter.api.DateFormatter
+import io.element.android.libraries.dateformatter.api.DateFormatterMode
+import io.element.android.libraries.di.AppScope
+import javax.inject.Inject
+
+@ContributesBinding(AppScope::class)
+class DefaultDateFormatter @Inject constructor(
+    private val dateFormatterFull: DateFormatterFull,
+    private val dateFormatterMonth: DateFormatterMonth,
+    private val dateFormatterDay: DateFormatterDay,
+    private val dateFormatterTime: DateFormatterTime,
+    private val dateFormatterTimeOnly: DateFormatterTimeOnly,
+) : DateFormatter {
+    override fun format(
+        timestamp: Long?,
+        mode: DateFormatterMode,
+        useRelative: Boolean,
+    ): String {
+        timestamp ?: return ""
+        return when (mode) {
+            DateFormatterMode.Full -> {
+                dateFormatterFull.format(timestamp, useRelative)
+            }
+            DateFormatterMode.Month -> {
+                dateFormatterMonth.format(timestamp, useRelative)
+            }
+            DateFormatterMode.Day -> {
+                dateFormatterDay.format(timestamp, useRelative)
+            }
+            DateFormatterMode.TimeOrDate -> {
+                dateFormatterTime.format(timestamp, useRelative)
+            }
+            DateFormatterMode.TimeOnly -> {
+                dateFormatterTimeOnly.format(timestamp)
+            }
+        }
+    }
+}
--- a/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/DefaultDaySeparatorFormatter.kt
+++ b/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/DefaultDaySeparatorFormatter.kt
@@ -1,25 +0,0 @@
-/*
- * Copyright 2023, 2024 New Vector Ltd.
- *
- * SPDX-License-Identifier: AGPL-3.0-only
- * Please see LICENSE in the repository root for full details.
- */
-
-package io.element.android.libraries.dateformatter.impl
-
-import com.squareup.anvil.annotations.ContributesBinding
-import io.element.android.libraries.dateformatter.api.DaySeparatorFormatter
-import io.element.android.libraries.di.AppScope
-import javax.inject.Inject
-
-@ContributesBinding(AppScope::class)
-class DefaultDaySeparatorFormatter @Inject constructor(
-    private val localDateTimeProvider: LocalDateTimeProvider,
-    private val dateFormatters: DateFormatters,
-) : DaySeparatorFormatter {
-    override fun format(timestamp: Long): String {
-        val dateToFormat = localDateTimeProvider.providesFromTimestamp(timestamp)
-        // TODO use relative formatting once iOS uses it too
-        return dateFormatters.formatDateWithFullFormat(dateToFormat)
-    }
-}
--- a/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/LocaleChangeObserver.kt
+++ b/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/LocaleChangeObserver.kt
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2024 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Please see LICENSE in the repository root for full details.
+ */
+
+package io.element.android.libraries.dateformatter.impl
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.content.IntentFilter
+import android.os.Build
+import com.squareup.anvil.annotations.ContributesBinding
+import io.element.android.libraries.di.AppScope
+import io.element.android.libraries.di.ApplicationContext
+import io.element.android.libraries.di.SingleIn
+import javax.inject.Inject
+
+fun interface LocaleChangeObserver {
+    fun addListener(listener: LocaleChangeListener)
+}
+
+interface LocaleChangeListener {
+    fun onLocaleChange()
+}
+
+@SingleIn(AppScope::class)
+@ContributesBinding(AppScope::class)
+class DefaultLocaleChangeObserver @Inject constructor(
+    @ApplicationContext private val context: Context,
+) : LocaleChangeObserver {
+    init {
+        registerReceiver(object : BroadcastReceiver() {
+            override fun onReceive(context: Context?, intent: Intent?) {
+                listeners.forEach(LocaleChangeListener::onLocaleChange)
+            }
+        })
+    }
+
+    private val listeners = mutableSetOf<LocaleChangeListener>()
+
+    override fun addListener(listener: LocaleChangeListener) {
+        listeners.add(listener)
+    }
+
+    private fun registerReceiver(receiver: BroadcastReceiver) {
+        val filter = IntentFilter()
+        filter.addAction(Intent.ACTION_LOCALE_CHANGED)
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            filter.addAction(Intent.ACTION_APPLICATION_LOCALE_CHANGED)
+        }
+        context.registerReceiver(receiver, filter)
+    }
+}
--- a/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/di/DateFormatterModule.kt
+++ b/libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/di/DateFormatterModule.kt
@@ -14,7 +14,6 @@ import io.element.android.libraries.dateformatter.impl.TimezoneProvider
 import io.element.android.libraries.di.AppScope
 import kotlinx.datetime.Clock
 import kotlinx.datetime.TimeZone
-import java.util.Locale

@Module
@ContributesTo(AppScope::class)
@@ -22,9 +21,6 @@ object DateFormatterModule {
    @Provides
    fun providesClock(): Clock = Clock.System

-    @Provides
-    fun providesLocale(): Locale = Locale.getDefault()
-
    @Provides
    fun providesTimezone(): TimezoneProvider = TimezoneProvider { TimeZone.currentSystemDefault() }
 }
--- a/libraries/dateformatter/impl/src/main/res/values-fr/translations.xml
+++ b/libraries/dateformatter/impl/src/main/res/values-fr/translations.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+  <string name="common_date_date_at_time">"%1$s à %2$s"</string>
+  <string name="common_date_this_month">"Ce mois-ci"</string>
+</resources>
--- a/libraries/dateformatter/impl/src/main/res/values/localazy.xml
+++ b/libraries/dateformatter/impl/src/main/res/values/localazy.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+  <string name="common_date_date_at_time">"%1$s at %2$s"</string>
+  <string name="common_date_this_month">"This month"</string>
+</resources>
--- a/libraries/dateformatter/impl/src/test/kotlin/io/element/android/libraries/dateformatter/impl/DefaultDateFormatterFrTest.kt
+++ b/libraries/dateformatter/impl/src/test/kotlin/io/element/android/libraries/dateformatter/impl/DefaultDateFormatterFrTest.kt
@@ -0,0 +1,277 @@
+/*
+ * Copyright 2023, 2024 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Please see LICENSE in the repository root for full details.
+ */
+
+package io.element.android.libraries.dateformatter.impl
+
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.google.common.truth.Truth.assertThat
+import io.element.android.libraries.dateformatter.api.DateFormatterMode
+import io.element.android.libraries.dateformatter.test.FakeClock
+import io.element.android.tests.testutils.InstrumentationStringProvider
+import kotlinx.datetime.Instant
+import kotlinx.datetime.TimeZone
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.annotation.Config
+
+@RunWith(AndroidJUnit4::class)
+@Config(qualifiers = "fr")
+class DefaultDateFormatterFrTest {
+    @Test
+    fun `test null`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val ts: Long? = null
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts)).isEmpty()
+    }
+
+    @Test
+    fun `test epoch`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val ts = 0L
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full)).isEqualTo("1 janvier 1970 à 00:00")
+        assertThat(formatter.format(ts, DateFormatterMode.Month)).isEqualTo("Janvier 1970")
+        assertThat(formatter.format(ts, DateFormatterMode.Day)).isEqualTo("1 janvier 1970")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate)).isEqualTo("01.01.1970")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly)).isEqualTo("00:00")
+    }
+
+    @Test
+    fun `test epoch relative`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val ts = 0L
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full, true)).isEqualTo("1 janvier 1970 à 00:00")
+        assertThat(formatter.format(ts, DateFormatterMode.Month, true)).isEqualTo("Janvier 1970")
+        assertThat(formatter.format(ts, DateFormatterMode.Day, true)).isEqualTo("1 janvier 1970")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate, true)).isEqualTo("01.01.1970")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly, true)).isEqualTo("00:00")
+    }
+
+    @Test
+    fun `test now`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-06T18:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full)).isEqualTo("6 avril 1980 à 18:35")
+        assertThat(formatter.format(ts, DateFormatterMode.Month)).isEqualTo("Avril 1980")
+        assertThat(formatter.format(ts, DateFormatterMode.Day)).isEqualTo("Dimanche 6 avril")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate)).isEqualTo("18:35")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly)).isEqualTo("18:35")
+    }
+
+    @Test
+    fun `test now relative`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-06T18:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full, true)).isEqualTo("18:35")
+        assertThat(formatter.format(ts, DateFormatterMode.Month, true)).isEqualTo("Ce mois-ci")
+        assertThat(formatter.format(ts, DateFormatterMode.Day, true)).isEqualTo("Aujourd’hui")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate, true)).isEqualTo("18:35")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly, true)).isEqualTo("18:35")
+    }
+
+    @Test
+    fun `test one second before`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-06T18:35:23.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full)).isEqualTo("6 avril 1980 à 18:35")
+        assertThat(formatter.format(ts, DateFormatterMode.Month)).isEqualTo("Avril 1980")
+        assertThat(formatter.format(ts, DateFormatterMode.Day)).isEqualTo("Dimanche 6 avril")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate)).isEqualTo("18:35")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly)).isEqualTo("18:35")
+    }
+
+    @Test
+    fun `test one second before relative`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-06T18:35:23.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full, true)).isEqualTo("18:35")
+        assertThat(formatter.format(ts, DateFormatterMode.Month, true)).isEqualTo("Ce mois-ci")
+        assertThat(formatter.format(ts, DateFormatterMode.Day, true)).isEqualTo("Aujourd’hui")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate, true)).isEqualTo("18:35")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly, true)).isEqualTo("18:35")
+    }
+
+    @Test
+    fun `test one minute before`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-06T18:34:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full)).isEqualTo("6 avril 1980 à 18:34")
+        assertThat(formatter.format(ts, DateFormatterMode.Month)).isEqualTo("Avril 1980")
+        assertThat(formatter.format(ts, DateFormatterMode.Day)).isEqualTo("Dimanche 6 avril")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate)).isEqualTo("18:34")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly)).isEqualTo("18:34")
+    }
+
+    @Test
+    fun `test one minute before relative`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-06T18:34:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full, true)).isEqualTo("18:34")
+        assertThat(formatter.format(ts, DateFormatterMode.Month, true)).isEqualTo("Ce mois-ci")
+        assertThat(formatter.format(ts, DateFormatterMode.Day, true)).isEqualTo("Aujourd’hui")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate, true)).isEqualTo("18:34")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly, true)).isEqualTo("18:34")
+    }
+
+    @Test
+    fun `test one hour before`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-06T17:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full)).isEqualTo("6 avril 1980 à 17:35")
+        assertThat(formatter.format(ts, DateFormatterMode.Month)).isEqualTo("Avril 1980")
+        assertThat(formatter.format(ts, DateFormatterMode.Day)).isEqualTo("Dimanche 6 avril")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate)).isEqualTo("17:35")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly)).isEqualTo("17:35")
+    }
+
+    @Test
+    fun `test one hour before relative`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-06T17:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full, true)).isEqualTo("17:35")
+        assertThat(formatter.format(ts, DateFormatterMode.Month, true)).isEqualTo("Ce mois-ci")
+        assertThat(formatter.format(ts, DateFormatterMode.Day, true)).isEqualTo("Aujourd’hui")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate, true)).isEqualTo("17:35")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly, true)).isEqualTo("17:35")
+    }
+
+    @Test
+    fun `test one day before same time`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-05T18:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full)).isEqualTo("5 avril 1980 à 18:35")
+        assertThat(formatter.format(ts, DateFormatterMode.Month)).isEqualTo("Avril 1980")
+        assertThat(formatter.format(ts, DateFormatterMode.Day)).isEqualTo("Samedi 5 avril")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate)).isEqualTo("5 avr.")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly)).isEqualTo("18:35")
+    }
+
+    @Test
+    fun `test one day before same time relative`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-05T18:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full, true)).isEqualTo("Hier à 18:35")
+        assertThat(formatter.format(ts, DateFormatterMode.Month, true)).isEqualTo("Ce mois-ci")
+        assertThat(formatter.format(ts, DateFormatterMode.Day, true)).isEqualTo("Hier")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate, true)).isEqualTo("Hier")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly, true)).isEqualTo("18:35")
+    }
+
+    @Test
+    fun `test one month before same time`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-03-06T18:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full)).isEqualTo("6 mars 1980 à 18:35")
+        assertThat(formatter.format(ts, DateFormatterMode.Month)).isEqualTo("Mars 1980")
+        assertThat(formatter.format(ts, DateFormatterMode.Day)).isEqualTo("Jeudi 6 mars")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate)).isEqualTo("6 mars")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly)).isEqualTo("18:35")
+    }
+
+    @Test
+    fun `test one month before same time relative`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-03-06T18:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full, true)).isEqualTo("Jeudi 6 mars à 18:35")
+        assertThat(formatter.format(ts, DateFormatterMode.Month, true)).isEqualTo("Mars 1980")
+        assertThat(formatter.format(ts, DateFormatterMode.Day, true)).isEqualTo("Jeudi 6 mars")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate, true)).isEqualTo("6 mars")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly, true)).isEqualTo("18:35")
+    }
+
+    @Test
+    fun `test one year before same time`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1979-04-06T18:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full)).isEqualTo("6 avril 1979 à 18:35")
+        assertThat(formatter.format(ts, DateFormatterMode.Month)).isEqualTo("Avril 1979")
+        assertThat(formatter.format(ts, DateFormatterMode.Day)).isEqualTo("6 avril 1979")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate)).isEqualTo("06.04.1979")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly)).isEqualTo("18:35")
+    }
+
+    @Test
+    fun `test one year before same time relative`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1979-04-06T18:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full, true)).isEqualTo("6 avril 1979 à 18:35")
+        assertThat(formatter.format(ts, DateFormatterMode.Month, true)).isEqualTo("Avril 1979")
+        assertThat(formatter.format(ts, DateFormatterMode.Day, true)).isEqualTo("6 avril 1979")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate, true)).isEqualTo("06.04.1979")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly, true)).isEqualTo("18:35")
+    }
+
+    /**
+     * Create DefaultLastMessageFormatter and set current time to the provided date.
+     */
+    private fun createFormatter(@Suppress("SameParameterValue") currentDate: String): DefaultDateFormatter {
+        val clock = FakeClock().apply { givenInstant(Instant.parse(currentDate)) }
+        val localDateTimeProvider = LocalDateTimeProvider(clock) { TimeZone.UTC }
+        val dateFormatters = DateFormatters(
+            localeChangeObserver = {},
+            clock = clock,
+            timeZoneProvider = { TimeZone.UTC },
+        )
+        val stringProvider = InstrumentationStringProvider()
+        val dateFormatterDay = DefaultDateFormatterDay(
+            localDateTimeProvider = localDateTimeProvider,
+            dateFormatters = dateFormatters,
+        )
+        return DefaultDateFormatter(
+            dateFormatterFull = DateFormatterFull(
+                stringProvider = stringProvider,
+                localDateTimeProvider = localDateTimeProvider,
+                dateFormatters = dateFormatters,
+                dateFormatterDay = dateFormatterDay,
+            ),
+            dateFormatterMonth = DateFormatterMonth(
+                stringProvider = stringProvider,
+                localDateTimeProvider = localDateTimeProvider,
+                dateFormatters = dateFormatters,
+            ),
+            dateFormatterDay = dateFormatterDay,
+            dateFormatterTime = DateFormatterTime(
+                localDateTimeProvider = localDateTimeProvider,
+                dateFormatters = dateFormatters,
+            ),
+            dateFormatterTimeOnly = DateFormatterTimeOnly(
+                localDateTimeProvider = localDateTimeProvider,
+                dateFormatters = dateFormatters,
+            ),
+        )
+    }
+}
--- a/libraries/dateformatter/impl/src/test/kotlin/io/element/android/libraries/dateformatter/impl/DefaultDateFormatterTest.kt
+++ b/libraries/dateformatter/impl/src/test/kotlin/io/element/android/libraries/dateformatter/impl/DefaultDateFormatterTest.kt
@@ -0,0 +1,277 @@
+/*
+ * Copyright 2023, 2024 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Please see LICENSE in the repository root for full details.
+ */
+
+package io.element.android.libraries.dateformatter.impl
+
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.google.common.truth.Truth.assertThat
+import io.element.android.libraries.dateformatter.api.DateFormatterMode
+import io.element.android.libraries.dateformatter.test.FakeClock
+import io.element.android.tests.testutils.InstrumentationStringProvider
+import kotlinx.datetime.Instant
+import kotlinx.datetime.TimeZone
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.annotation.Config
+
+@RunWith(AndroidJUnit4::class)
+@Config(qualifiers = "en")
+class DefaultDateFormatterTest {
+    @Test
+    fun `test null`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val ts: Long? = null
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts)).isEmpty()
+    }
+
+    @Test
+    fun `test epoch`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val ts = 0L
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full)).isEqualTo("January 1, 1970 at 12:00 AM")
+        assertThat(formatter.format(ts, DateFormatterMode.Month)).isEqualTo("January 1970")
+        assertThat(formatter.format(ts, DateFormatterMode.Day)).isEqualTo("January 1, 1970")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate)).isEqualTo("01.01.1970")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly)).isEqualTo("12:00 AM")
+    }
+
+    @Test
+    fun `test epoch relative`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val ts = 0L
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full, true)).isEqualTo("January 1, 1970 at 12:00 AM")
+        assertThat(formatter.format(ts, DateFormatterMode.Month, true)).isEqualTo("January 1970")
+        assertThat(formatter.format(ts, DateFormatterMode.Day, true)).isEqualTo("January 1, 1970")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate, true)).isEqualTo("01.01.1970")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly, true)).isEqualTo("12:00 AM")
+    }
+
+    @Test
+    fun `test now`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-06T18:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full)).isEqualTo("April 6, 1980 at 6:35 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.Month)).isEqualTo("April 1980")
+        assertThat(formatter.format(ts, DateFormatterMode.Day)).isEqualTo("Sunday 6 April")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate)).isEqualTo("6:35 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly)).isEqualTo("6:35 PM")
+    }
+
+    @Test
+    fun `test now relative`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-06T18:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full, true)).isEqualTo("6:35 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.Month, true)).isEqualTo("This month")
+        assertThat(formatter.format(ts, DateFormatterMode.Day, true)).isEqualTo("Today")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate, true)).isEqualTo("6:35 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly, true)).isEqualTo("6:35 PM")
+    }
+
+    @Test
+    fun `test one second before`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-06T18:35:23.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full)).isEqualTo("April 6, 1980 at 6:35 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.Month)).isEqualTo("April 1980")
+        assertThat(formatter.format(ts, DateFormatterMode.Day)).isEqualTo("Sunday 6 April")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate)).isEqualTo("6:35 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly)).isEqualTo("6:35 PM")
+    }
+
+    @Test
+    fun `test one second before relative`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-06T18:35:23.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full, true)).isEqualTo("6:35 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.Month, true)).isEqualTo("This month")
+        assertThat(formatter.format(ts, DateFormatterMode.Day, true)).isEqualTo("Today")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate, true)).isEqualTo("6:35 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly, true)).isEqualTo("6:35 PM")
+    }
+
+    @Test
+    fun `test one minute before`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-06T18:34:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full)).isEqualTo("April 6, 1980 at 6:34 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.Month)).isEqualTo("April 1980")
+        assertThat(formatter.format(ts, DateFormatterMode.Day)).isEqualTo("Sunday 6 April")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate)).isEqualTo("6:34 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly)).isEqualTo("6:34 PM")
+    }
+
+    @Test
+    fun `test one minute before relative`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-06T18:34:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full, true)).isEqualTo("6:34 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.Month, true)).isEqualTo("This month")
+        assertThat(formatter.format(ts, DateFormatterMode.Day, true)).isEqualTo("Today")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate, true)).isEqualTo("6:34 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly, true)).isEqualTo("6:34 PM")
+    }
+
+    @Test
+    fun `test one hour before`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-06T17:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full)).isEqualTo("April 6, 1980 at 5:35 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.Month)).isEqualTo("April 1980")
+        assertThat(formatter.format(ts, DateFormatterMode.Day)).isEqualTo("Sunday 6 April")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate)).isEqualTo("5:35 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly)).isEqualTo("5:35 PM")
+    }
+
+    @Test
+    fun `test one hour before relative`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-06T17:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full, true)).isEqualTo("5:35 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.Month, true)).isEqualTo("This month")
+        assertThat(formatter.format(ts, DateFormatterMode.Day, true)).isEqualTo("Today")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate, true)).isEqualTo("5:35 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly, true)).isEqualTo("5:35 PM")
+    }
+
+    @Test
+    fun `test one day before same time`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-05T18:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full)).isEqualTo("April 5, 1980 at 6:35 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.Month)).isEqualTo("April 1980")
+        assertThat(formatter.format(ts, DateFormatterMode.Day)).isEqualTo("Saturday 5 April")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate)).isEqualTo("5 Apr")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly)).isEqualTo("6:35 PM")
+    }
+
+    @Test
+    fun `test one day before same time relative`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-04-05T18:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full, true)).isEqualTo("Yesterday at 6:35 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.Month, true)).isEqualTo("This month")
+        assertThat(formatter.format(ts, DateFormatterMode.Day, true)).isEqualTo("Yesterday")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate, true)).isEqualTo("Yesterday")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly, true)).isEqualTo("6:35 PM")
+    }
+
+    @Test
+    fun `test one month before same time`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-03-06T18:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full)).isEqualTo("March 6, 1980 at 6:35 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.Month)).isEqualTo("March 1980")
+        assertThat(formatter.format(ts, DateFormatterMode.Day)).isEqualTo("Thursday 6 March")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate)).isEqualTo("6 Mar")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly)).isEqualTo("6:35 PM")
+    }
+
+    @Test
+    fun `test one month before same time relative`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1980-03-06T18:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full, true)).isEqualTo("Thursday 6 March at 6:35 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.Month, true)).isEqualTo("March 1980")
+        assertThat(formatter.format(ts, DateFormatterMode.Day, true)).isEqualTo("Thursday 6 March")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate, true)).isEqualTo("6 Mar")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly, true)).isEqualTo("6:35 PM")
+    }
+
+    @Test
+    fun `test one year before same time`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1979-04-06T18:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full)).isEqualTo("April 6, 1979 at 6:35 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.Month)).isEqualTo("April 1979")
+        assertThat(formatter.format(ts, DateFormatterMode.Day)).isEqualTo("April 6, 1979")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate)).isEqualTo("06.04.1979")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly)).isEqualTo("6:35 PM")
+    }
+
+    @Test
+    fun `test one year before same time relative`() {
+        val now = "1980-04-06T18:35:24.00Z"
+        val dat = "1979-04-06T18:35:24.00Z"
+        val ts = Instant.parse(dat).toEpochMilliseconds()
+        val formatter = createFormatter(now)
+        assertThat(formatter.format(ts, DateFormatterMode.Full, true)).isEqualTo("April 6, 1979 at 6:35 PM")
+        assertThat(formatter.format(ts, DateFormatterMode.Month, true)).isEqualTo("April 1979")
+        assertThat(formatter.format(ts, DateFormatterMode.Day, true)).isEqualTo("April 6, 1979")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOrDate, true)).isEqualTo("06.04.1979")
+        assertThat(formatter.format(ts, DateFormatterMode.TimeOnly, true)).isEqualTo("6:35 PM")
+    }
+
+    /**
+     * Create DefaultLastMessageFormatter and set current time to the provided date.
+     */
+    private fun createFormatter(@Suppress("SameParameterValue") currentDate: String): DefaultDateFormatter {
+        val clock = FakeClock().apply { givenInstant(Instant.parse(currentDate)) }
+        val localDateTimeProvider = LocalDateTimeProvider(clock) { TimeZone.UTC }
+        val dateFormatters = DateFormatters(
+            localeChangeObserver = {},
+            clock = clock,
+            timeZoneProvider = { TimeZone.UTC },
+        )
+        val stringProvider = InstrumentationStringProvider()
+        val dateFormatterDay = DefaultDateFormatterDay(
+            localDateTimeProvider = localDateTimeProvider,
+            dateFormatters = dateFormatters,
+        )
+        return DefaultDateFormatter(
+            dateFormatterFull = DateFormatterFull(
+                stringProvider = stringProvider,
+                localDateTimeProvider = localDateTimeProvider,
+                dateFormatters = dateFormatters,
+                dateFormatterDay = dateFormatterDay,
+            ),
+            dateFormatterMonth = DateFormatterMonth(
+                stringProvider = stringProvider,
+                localDateTimeProvider = localDateTimeProvider,
+                dateFormatters = dateFormatters,
+            ),
+            dateFormatterDay = dateFormatterDay,
+            dateFormatterTime = DateFormatterTime(
+                localDateTimeProvider = localDateTimeProvider,
+                dateFormatters = dateFormatters,
+            ),
+            dateFormatterTimeOnly = DateFormatterTimeOnly(
+                localDateTimeProvider = localDateTimeProvider,
+                dateFormatters = dateFormatters,
+            ),
+        )
+    }
+}
--- a/libraries/dateformatter/impl/src/test/kotlin/io/element/android/libraries/dateformatter/impl/DefaultLastMessageTimestampFormatterTest.kt
+++ b/libraries/dateformatter/impl/src/test/kotlin/io/element/android/libraries/dateformatter/impl/DefaultLastMessageTimestampFormatterTest.kt
@@ -1,109 +0,0 @@
-/*
- * Copyright 2023, 2024 New Vector Ltd.
- *
- * SPDX-License-Identifier: AGPL-3.0-only
- * Please see LICENSE in the repository root for full details.
- */
-
-package io.element.android.libraries.dateformatter.impl
-
-import com.google.common.truth.Truth.assertThat
-import io.element.android.libraries.dateformatter.api.LastMessageTimestampFormatter
-import io.element.android.libraries.dateformatter.test.FakeClock
-import kotlinx.datetime.Instant
-import kotlinx.datetime.TimeZone
-import kotlinx.datetime.toLocalDateTime
-import org.junit.Test
-import java.util.Locale
-
-class DefaultLastMessageTimestampFormatterTest {
-    @Test
-    fun `test null`() {
-        val now = "1980-04-06T18:35:24.00Z"
-        val formatter = createFormatter(now)
-        assertThat(formatter.format(null)).isEmpty()
-    }
-
-    @Test
-    fun `test epoch`() {
-        val now = "1980-04-06T18:35:24.00Z"
-        val formatter = createFormatter(now)
-        assertThat(formatter.format(0)).isEqualTo("01.01.1970")
-    }
-
-    @Test
-    fun `test now`() {
-        val now = "1980-04-06T18:35:24.00Z"
-        val dat = "1980-04-06T18:35:24.00Z"
-        val formatter = createFormatter(now)
-        assertThat(formatter.format(Instant.parse(dat).toEpochMilliseconds())).isEqualTo("6:35 PM")
-    }
-
-    @Test
-    fun `test one second before`() {
-        val now = "1980-04-06T18:35:24.00Z"
-        val dat = "1980-04-06T18:35:23.00Z"
-        val formatter = createFormatter(now)
-        assertThat(formatter.format(Instant.parse(dat).toEpochMilliseconds())).isEqualTo("6:35 PM")
-    }
-
-    @Test
-    fun `test one minute before`() {
-        val now = "1980-04-06T18:35:24.00Z"
-        val dat = "1980-04-06T18:34:24.00Z"
-        val formatter = createFormatter(now)
-        assertThat(formatter.format(Instant.parse(dat).toEpochMilliseconds())).isEqualTo("6:34 PM")
-    }
-
-    @Test
-    fun `test one hour before`() {
-        val now = "1980-04-06T18:35:24.00Z"
-        val dat = "1980-04-06T17:35:24.00Z"
-        val formatter = createFormatter(now)
-        assertThat(formatter.format(Instant.parse(dat).toEpochMilliseconds())).isEqualTo("5:35 PM")
-    }
-
-    @Test
-    fun `test one day before same time`() {
-        val now = "1980-04-06T18:35:24.00Z"
-        val dat = "1980-04-05T18:35:24.00Z"
-        val formatter = createFormatter(now)
-        // TODO DateUtils.getRelativeTimeSpanString returns null.
-        assertThat(formatter.format(Instant.parse(dat).toEpochMilliseconds())).isEqualTo("")
-    }
-
-    @Test
-    fun `test one month before same time`() {
-        val now = "1980-04-06T18:35:24.00Z"
-        val dat = "1980-03-06T18:35:24.00Z"
-        val formatter = createFormatter(now)
-        assertThat(formatter.format(Instant.parse(dat).toEpochMilliseconds())).isEqualTo("6 Mar")
-    }
-
-    @Test
-    fun `test one year before same time`() {
-        val now = "1980-04-06T18:35:24.00Z"
-        val dat = "1979-04-06T18:35:24.00Z"
-        val formatter = createFormatter(now)
-        assertThat(formatter.format(Instant.parse(dat).toEpochMilliseconds())).isEqualTo("06.04.1979")
-    }
-
-    @Test
-    fun `test full format`() {
-        val now = "1980-04-06T18:35:24.00Z"
-        val dat = "1979-04-06T18:35:24.00Z"
-        val clock = FakeClock().apply { givenInstant(Instant.parse(now)) }
-        val dateFormatters = DateFormatters(Locale.US, clock) { TimeZone.UTC }
-        assertThat(dateFormatters.formatDateWithFullFormat(Instant.parse(dat).toLocalDateTime(TimeZone.UTC))).isEqualTo("Friday, April 6, 1979")
-    }
-
-    /**
-     * Create DefaultLastMessageFormatter and set current time to the provided date.
-     */
-    private fun createFormatter(@Suppress("SameParameterValue") currentDate: String): LastMessageTimestampFormatter {
-        val clock = FakeClock().apply { givenInstant(Instant.parse(currentDate)) }
-        val localDateTimeProvider = LocalDateTimeProvider(clock) { TimeZone.UTC }
-        val dateFormatters = DateFormatters(Locale.US, clock) { TimeZone.UTC }
-        return DefaultLastMessageTimestampFormatter(localDateTimeProvider, dateFormatters)
-    }
-}
--- a/libraries/dateformatter/test/src/main/kotlin/io/element/android/libraries/dateformatter/test/FakeDateFormatter.kt
+++ b/libraries/dateformatter/test/src/main/kotlin/io/element/android/libraries/dateformatter/test/FakeDateFormatter.kt
@@ -0,0 +1,25 @@
+/*
+ * Copyright 2024 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Please see LICENSE in the repository root for full details.
+ */
+
+package io.element.android.libraries.dateformatter.test
+
+import io.element.android.libraries.dateformatter.api.DateFormatter
+import io.element.android.libraries.dateformatter.api.DateFormatterMode
+
+class FakeDateFormatter(
+    private val formatLambda: (Long?, DateFormatterMode, Boolean) -> String = { timestamp, mode, useRelative ->
+        "$timestamp $mode $useRelative"
+    },
+) : DateFormatter {
+    override fun format(
+        timestamp: Long?,
+        mode: DateFormatterMode,
+        useRelative: Boolean,
+    ): String {
+        return formatLambda(timestamp, mode, useRelative)
+    }
+}
--- a/libraries/dateformatter/test/src/main/kotlin/io/element/android/libraries/dateformatter/test/FakeDaySeparatorFormatter.kt
+++ b/libraries/dateformatter/test/src/main/kotlin/io/element/android/libraries/dateformatter/test/FakeDaySeparatorFormatter.kt
@@ -1,22 +0,0 @@
-/*
- * Copyright 2023, 2024 New Vector Ltd.
- *
- * SPDX-License-Identifier: AGPL-3.0-only
- * Please see LICENSE in the repository root for full details.
- */
-
-package io.element.android.libraries.dateformatter.test
-
-import io.element.android.libraries.dateformatter.api.DaySeparatorFormatter
-
-class FakeDaySeparatorFormatter : DaySeparatorFormatter {
-    private var format = ""
-
-    fun givenFormat(format: String) {
-        this.format = format
-    }
-
-    override fun format(timestamp: Long): String {
-        return format
-    }
-}
--- a/libraries/dateformatter/test/src/main/kotlin/io/element/android/libraries/dateformatter/test/FakeLastMessageTimestampFormatter.kt
+++ b/libraries/dateformatter/test/src/main/kotlin/io/element/android/libraries/dateformatter/test/FakeLastMessageTimestampFormatter.kt
@@ -1,24 +0,0 @@
-/*
- * Copyright 2023, 2024 New Vector Ltd.
- *
- * SPDX-License-Identifier: AGPL-3.0-only
- * Please see LICENSE in the repository root for full details.
- */
-
-package io.element.android.libraries.dateformatter.test
-
-import io.element.android.libraries.dateformatter.api.LastMessageTimestampFormatter
-
-const val A_FORMATTED_DATE = "formatted_date"
-
-class FakeLastMessageTimestampFormatter(
-    var format: String = "",
-) : LastMessageTimestampFormatter {
-    fun givenFormat(format: String) {
-        this.format = format
-    }
-
-    override fun format(timestamp: Long?): String {
-        return format
-    }
-}