diff --git a/app/src/main/java/org/tasks/preferences/Preferences.kt b/app/src/main/java/org/tasks/preferences/Preferences.kt
index c4c8350d1..fc9e97751 100644
--- a/app/src/main/java/org/tasks/preferences/Preferences.kt
+++ b/app/src/main/java/org/tasks/preferences/Preferences.kt
@@ -172,6 +172,12 @@ class Preferences @JvmOverloads constructor(
     val defaultCalendar: String?
         get() = getStringValue(R.string.gcal_p_default)
 
+    val firstDayOfWeek: Int
+        get() {
+            val firstDayOfWeek = getIntegerFromString(R.string.p_start_of_week, 0)
+            return if (firstDayOfWeek < 1 || firstDayOfWeek > 7) 0 else firstDayOfWeek
+        }
+
     val showEditScreenWithoutUnlock: Boolean
         get() = getBoolean(R.string.p_show_edit_screen_without_unlock, false)
 
diff --git a/app/src/main/java/org/tasks/preferences/fragments/DateAndTime.kt b/app/src/main/java/org/tasks/preferences/fragments/DateAndTime.kt
index 488eab547..f1daf9c10 100644
--- a/app/src/main/java/org/tasks/preferences/fragments/DateAndTime.kt
+++ b/app/src/main/java/org/tasks/preferences/fragments/DateAndTime.kt
@@ -32,10 +32,16 @@ class DateAndTime : InjectingPreferenceFragment(), Preference.OnPreferenceChange
     override fun getPreferenceXml() = R.xml.preferences_date_and_time
 
     override suspend fun setupPreferences(savedInstanceState: Bundle?) {
+        val startOfWeekPreference: ListPreference = getStartOfWeekPreference()
+        startOfWeekPreference.entries = getWeekdayEntries()
+        startOfWeekPreference.onPreferenceChangeListener = this
+
         initializeTimePreference(getMorningPreference(), REQUEST_MORNING)
         initializeTimePreference(getAfternoonPreference(), REQUEST_AFTERNOON)
         initializeTimePreference(getEveningPreference(), REQUEST_EVENING)
         initializeTimePreference(getNightPreference(), REQUEST_NIGHT)
+
+        updateStartOfWeek(preferences.getStringValue(R.string.p_start_of_week)!!)
     }
 
     override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
@@ -71,32 +77,36 @@ class DateAndTime : InjectingPreferenceFragment(), Preference.OnPreferenceChange
     }
 
     override fun onPreferenceChange(preference: Preference, newValue: Any?): Boolean {
-        val millisOfDay = newValue as Int
-        if (preference == getMorningPreference()) {
-            if (millisOfDay >= getAfternoonPreference().millisOfDay) {
-                mustComeBefore(R.string.date_shortcut_morning, R.string.date_shortcut_afternoon)
-                return false
-            }
-        } else if (preference == getAfternoonPreference()) {
-            if (millisOfDay <= getMorningPreference().millisOfDay) {
-                mustComeAfter(R.string.date_shortcut_afternoon, R.string.date_shortcut_morning)
-                return false
-            } else if (millisOfDay >= getEveningPreference().millisOfDay) {
-                mustComeBefore(R.string.date_shortcut_afternoon, R.string.date_shortcut_evening)
-                return false
-            }
-        } else if (preference == getEveningPreference()) {
-            if (millisOfDay <= getAfternoonPreference().millisOfDay) {
-                mustComeAfter(R.string.date_shortcut_evening, R.string.date_shortcut_afternoon)
-                return false
-            } else if (millisOfDay >= getNightPreference().millisOfDay) {
-                mustComeBefore(R.string.date_shortcut_evening, R.string.date_shortcut_night)
-                return false
-            }
-        } else if (preference == getNightPreference()) {
-            if (millisOfDay <= getEveningPreference().millisOfDay) {
-                mustComeAfter(R.string.date_shortcut_night, R.string.date_shortcut_evening)
-                return false
+        if (preference == getStartOfWeekPreference()) {
+            updateStartOfWeek(newValue.toString())
+        } else {
+            val millisOfDay = newValue as Int
+            if (preference == getMorningPreference()) {
+                if (millisOfDay >= getAfternoonPreference().millisOfDay) {
+                    mustComeBefore(R.string.date_shortcut_morning, R.string.date_shortcut_afternoon)
+                    return false
+                }
+            } else if (preference == getAfternoonPreference()) {
+                if (millisOfDay <= getMorningPreference().millisOfDay) {
+                    mustComeAfter(R.string.date_shortcut_afternoon, R.string.date_shortcut_morning)
+                    return false
+                } else if (millisOfDay >= getEveningPreference().millisOfDay) {
+                    mustComeBefore(R.string.date_shortcut_afternoon, R.string.date_shortcut_evening)
+                    return false
+                }
+            } else if (preference == getEveningPreference()) {
+                if (millisOfDay <= getAfternoonPreference().millisOfDay) {
+                    mustComeAfter(R.string.date_shortcut_evening, R.string.date_shortcut_afternoon)
+                    return false
+                } else if (millisOfDay >= getNightPreference().millisOfDay) {
+                    mustComeBefore(R.string.date_shortcut_evening, R.string.date_shortcut_night)
+                    return false
+                }
+            } else if (preference == getNightPreference()) {
+                if (millisOfDay <= getEveningPreference().millisOfDay) {
+                    mustComeAfter(R.string.date_shortcut_night, R.string.date_shortcut_evening)
+                    return false
+                }
             }
         }
         return true
@@ -113,6 +123,19 @@ class DateAndTime : InjectingPreferenceFragment(), Preference.OnPreferenceChange
     private fun invalidSetting(errorResId: Int, settingResId: Int, relativeResId: Int) =
         context?.toast(errorResId, getString(settingResId), getString(relativeResId))
 
+    private fun updateStartOfWeek(value: String) {
+        val preference = getStartOfWeekPreference()
+        val index = preference.findIndexOfValue(value)
+        val summary: String? = getWeekdayEntries()[index]
+        preference.summary = summary
+    }
+
+    private fun getStartOfWeekPreference(): ListPreference =
+            findPreference(R.string.p_start_of_week) as ListPreference
+
+    private fun getWeekdayDisplayName(dayOfWeek: DayOfWeek): String =
+            dayOfWeek.getDisplayName(TextStyle.FULL, locale)
+
     private fun getMorningPreference(): TimePreference =
             getTimePreference(R.string.p_date_shortcut_morning)
 
@@ -127,4 +150,15 @@ class DateAndTime : InjectingPreferenceFragment(), Preference.OnPreferenceChange
 
     private fun getTimePreference(resId: Int): TimePreference =
             findPreference(resId) as TimePreference
+
+    private fun getWeekdayEntries(): Array<String?> = arrayOf(
+        getString(R.string.use_locale_default),
+        getWeekdayDisplayName(DayOfWeek.SUNDAY),
+        getWeekdayDisplayName(DayOfWeek.MONDAY),
+        getWeekdayDisplayName(DayOfWeek.TUESDAY),
+        getWeekdayDisplayName(DayOfWeek.WEDNESDAY),
+        getWeekdayDisplayName(DayOfWeek.THURSDAY),
+        getWeekdayDisplayName(DayOfWeek.FRIDAY),
+        getWeekdayDisplayName(DayOfWeek.SATURDAY)
+    )
 }
\ No newline at end of file
diff --git a/app/src/main/res/values-ar/strings.xml b/app/src/main/res/values-ar/strings.xml
index f5ef8bf5a..790ec3706 100644
--- a/app/src/main/res/values-ar/strings.xml
+++ b/app/src/main/res/values-ar/strings.xml
@@ -168,6 +168,7 @@
     <string name="visit_website">زر الموقع</string>
     <string name="action_new_task">مهمة جديدة</string>
     <string name="help">مساعدة</string>
+    <string name="start_of_week">بداية أسبوع</string>
     <string name="take_a_picture">التقط صورة</string>
     <string name="repeat_option_every_year">سنويًّا</string>
     <string name="repeat_option_every_month">شهريًّا</string>
@@ -534,6 +535,7 @@
     <string name="repeats_single_on">أعده %1$s عند %2$s</string>
     <string name="repeats_single">أعده %s</string>
     <string name="bundle_notifications">حزمة الاشعارات</string>
+    <string name="use_locale_default">استخدم الإعدادات المحلية الافتراضية</string>
     <string name="clear_completed_tasks_confirmation">أزل المهام المتممة؟</string>
     <string name="hardware_support_required">مطلوب دعم الأجهزة</string>
     <string name="restart_required">أعد تشغيل التطبيق ليأخذ هذا التغيير تأثيره</string>
diff --git a/app/src/main/res/values-bg-rBG/strings.xml b/app/src/main/res/values-bg-rBG/strings.xml
index ae5d71afc..ee86494be 100644
--- a/app/src/main/res/values-bg-rBG/strings.xml
+++ b/app/src/main/res/values-bg-rBG/strings.xml
@@ -309,6 +309,8 @@
     <string name="delete_selected_tasks">Изтриване на избраните задачи?</string>
     <string name="copy_selected_tasks">Копиране на избраните задачи?</string>
     <string name="date_and_time">Дата и час</string>
+    <string name="start_of_week">Начало на седмицата</string>
+    <string name="use_locale_default">По подразбиране от езика</string>
     <string name="add_account">Добавяне на профил</string>
     <string name="user">Потребител</string>
     <string name="password">Парола</string>
diff --git a/app/src/main/res/values-ca/strings.xml b/app/src/main/res/values-ca/strings.xml
index a55b1e173..760da1aa3 100644
--- a/app/src/main/res/values-ca/strings.xml
+++ b/app/src/main/res/values-ca/strings.xml
@@ -347,6 +347,7 @@
     <string name="choose_new_location">Escollir una nova ubicació</string>
     <string name="location_permission_required_location">Es necessiten els permisos de ubicació per trobar la teva ubicació actual</string>
     <string name="google_tasks_add_to_top">Noves tasques a sobre</string>
+    <string name="start_of_week">Inici de la setmana</string>
     <string name="help">Ajuda</string>
     <string name="silent">Silenci</string>
     <string name="vibrations">Vibracions</string>
diff --git a/app/src/main/res/values-cs/strings.xml b/app/src/main/res/values-cs/strings.xml
index 7f3c64910..7fbad725b 100644
--- a/app/src/main/res/values-cs/strings.xml
+++ b/app/src/main/res/values-cs/strings.xml
@@ -322,6 +322,8 @@
     <string name="delete_selected_tasks">Smazat vybrané úkoly\?</string>
     <string name="copy_selected_tasks">Zkopírovat vybrané úkoly\?</string>
     <string name="date_and_time">Datum a čas</string>
+    <string name="start_of_week">Začátek týdne</string>
+    <string name="use_locale_default">Použít výchozí nastavení pro váš jazyk</string>
     <string name="add_account">Přidat účet</string>
     <string name="user">Uživatel</string>
     <string name="password">Heslo</string>
diff --git a/app/src/main/res/values-da/strings.xml b/app/src/main/res/values-da/strings.xml
index b56da972e..4c7415c23 100644
--- a/app/src/main/res/values-da/strings.xml
+++ b/app/src/main/res/values-da/strings.xml
@@ -230,6 +230,8 @@
     <string name="password">Kodeord</string>
     <string name="user">Bruger</string>
     <string name="add_account">Tilføj konto</string>
+    <string name="use_locale_default">Brug systemindstilling</string>
+    <string name="start_of_week">Ugen begynder</string>
     <string name="date_and_time">Dato og tidspunkt</string>
     <string name="delete_selected_tasks">Slet de markerede opgaver\?</string>
     <string name="copy_selected_tasks">Kopiér de markerede opgaver\?</string>
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 13877be68..ed9eab998 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -299,6 +299,8 @@
     <string name="delete_selected_tasks">Ausgewählte Aufgaben löschen?</string>
     <string name="copy_selected_tasks">Ausgewählte Aufgaben kopieren?</string>
     <string name="date_and_time">Datum und Uhrzeit</string>
+    <string name="start_of_week">Beginn der Woche</string>
+    <string name="use_locale_default">Aus Systemeinstellungen</string>
     <string name="add_account">Konto hinzufügen</string>
     <string name="user">Benutzer</string>
     <string name="password">Passwort</string>
diff --git a/app/src/main/res/values-eo/strings.xml b/app/src/main/res/values-eo/strings.xml
index b30afe468..804372127 100644
--- a/app/src/main/res/values-eo/strings.xml
+++ b/app/src/main/res/values-eo/strings.xml
@@ -197,6 +197,7 @@
     <string name="password">Pasvorto</string>
     <string name="user">Uzanto</string>
     <string name="add_account">Aldoni konton</string>
+    <string name="start_of_week">Komenco de semajno</string>
     <string name="date_and_time">Dato kaj tempo</string>
     <string name="copy_selected_tasks">Ĉu kopii elektitajn taskojn\?</string>
     <string name="delete_selected_tasks">Ĉu forigi elektitajn taskojn\?</string>
@@ -554,6 +555,7 @@
     <string name="repeats_single_until">Ripetiĝas %1$s, finiĝos %2$s</string>
     <string name="got_it">Komprenite!</string>
     <string name="backups_ignore_warnings_summary">Ignori avertojn pri savkopioj se vi ne bezonas savkopiojn aŭ jam havas propran savkopian solvon</string>
+    <string name="use_locale_default">Uzi defaŭlton de lokaĵaro</string>
     <string name="error_adding_account">Eraro: %s</string>
     <string name="logout_warning">Ĉiu de la datumo de ĉi tiu konto foriĝos el via aparato</string>
     <string name="location_permission_required_location">Por trovi vian aktualan lokon bezonas permesoj pri loko</string>
diff --git a/app/src/main/res/values-es/strings.xml b/app/src/main/res/values-es/strings.xml
index 004b06565..118d11d6d 100644
--- a/app/src/main/res/values-es/strings.xml
+++ b/app/src/main/res/values-es/strings.xml
@@ -321,6 +321,8 @@
     <string name="delete_selected_tasks">¿Borrar tareas seleccionadas?</string>
     <string name="copy_selected_tasks">¿Copiar tareas seleccionadas?</string>
     <string name="date_and_time">Fecha y hora</string>
+    <string name="start_of_week">Inicio de semana</string>
+    <string name="use_locale_default">Usar configuración regional</string>
     <string name="add_account">Añadir cuenta</string>
     <string name="user">Usuario</string>
     <string name="password">Contraseña</string>
diff --git a/app/src/main/res/values-et/strings.xml b/app/src/main/res/values-et/strings.xml
index be7707366..0e1e562d1 100644
--- a/app/src/main/res/values-et/strings.xml
+++ b/app/src/main/res/values-et/strings.xml
@@ -203,6 +203,7 @@
     <string name="delete_selected_tasks">Kas kustutame valitud ülesanded?</string>
     <string name="copy_selected_tasks">Kas kopeerime valitud ülesanded?</string>
     <string name="date_and_time">Kuupäev ja kellaaeg</string>
+    <string name="start_of_week">Nädala algus</string>
     <string name="add_account">Lisa konto</string>
     <string name="user">Kasutaja</string>
     <string name="password">Salasõna</string>
@@ -460,6 +461,7 @@
     <string name="app_password">Rakenduse salasõna</string>
     <string name="follow_twitter">Jälgi @tasks_org</string>
     <string name="TEA_creation_date">Loomise kuupäev</string>
+    <string name="use_locale_default">Kasuta vaikelokaati</string>
     <string name="default_random_reminder_bi_weekly">Igal teisel nädalal</string>
     <string name="next_friday">Järgmine R</string>
     <string name="header_spacing">Reavahe</string>
diff --git a/app/src/main/res/values-eu/strings.xml b/app/src/main/res/values-eu/strings.xml
index 41aa426c1..c37ae9636 100644
--- a/app/src/main/res/values-eu/strings.xml
+++ b/app/src/main/res/values-eu/strings.xml
@@ -310,6 +310,8 @@
     <string name="delete_selected_tasks">Ezabatu hautatutako zereginak\?</string>
     <string name="copy_selected_tasks">Kopiatu hautatutako zereginak\?</string>
     <string name="date_and_time">Data eta ordua</string>
+    <string name="start_of_week">Astearen hasiera</string>
+    <string name="use_locale_default">Erabili hizkuntzak lehenetsitakoa</string>
     <string name="add_account">Gehitu kontua</string>
     <string name="user">Erabiltzailea</string>
     <string name="password">Pasahitza</string>
diff --git a/app/src/main/res/values-fi/strings.xml b/app/src/main/res/values-fi/strings.xml
index f7056a13a..0ed13e9f6 100644
--- a/app/src/main/res/values-fi/strings.xml
+++ b/app/src/main/res/values-fi/strings.xml
@@ -286,6 +286,8 @@
     <string name="delete_selected_tasks">Poistetaanko valitut tehtävät?</string>
     <string name="copy_selected_tasks">Kopioi valitut tehtävät?</string>
     <string name="date_and_time">Päivä ja aika</string>
+    <string name="start_of_week">Viikon alku</string>
+    <string name="use_locale_default">Käytä paikallista oletusta</string>
     <string name="notification_disable_battery_optimizations_description">Akun optimointi voi viivästyttää ilmoituksia</string>
     <string name="bundle_notifications">Niputa ilmoitukset</string>
     <string name="badges">Merkit</string>
diff --git a/app/src/main/res/values-fr/strings.xml b/app/src/main/res/values-fr/strings.xml
index c9ee9e9f2..5083cafd4 100644
--- a/app/src/main/res/values-fr/strings.xml
+++ b/app/src/main/res/values-fr/strings.xml
@@ -307,6 +307,8 @@
     <string name="delete_selected_tasks">Supprimer les tâches sélectionnées \?</string>
     <string name="copy_selected_tasks">Copier les tâches sélectionnées \?</string>
     <string name="date_and_time">Date et heure</string>
+    <string name="start_of_week">Début de la semaine</string>
+    <string name="use_locale_default">Utiliser les paramètres de langue par défaut</string>
     <string name="add_account">Ajouter un compte</string>
     <string name="user">Utilisateur</string>
     <string name="password">Mot de passe</string>
diff --git a/app/src/main/res/values-gl/strings.xml b/app/src/main/res/values-gl/strings.xml
index ef0b86a4f..014a379e4 100644
--- a/app/src/main/res/values-gl/strings.xml
+++ b/app/src/main/res/values-gl/strings.xml
@@ -239,6 +239,7 @@
     <string name="filter_no_priority">Sen prioridade</string>
     <string name="repeat_type_due">data de fin</string>
     <string name="geofence_radius">Radio</string>
+    <string name="use_locale_default">Usar predefinido do sistema</string>
     <string name="add_account">Engadir conta</string>
     <string name="error_adding_account">Erro: %s</string>
     <string name="repeats_yearly">por ano</string>
@@ -265,6 +266,7 @@
     <string name="opacity_header">Opacidade da cabeceira</string>
     <string name="widget_due_date_after_title">Despois do título</string>
     <string name="widget_due_date_below_title">Por debaixo do título</string>
+    <string name="start_of_week">Comezo da semana</string>
     <string name="notification_disable_battery_optimizations_description">Os optimizadores da batería poden retrasar as notificacións</string>
     <string name="badges">Contadores</string>
     <string name="list">Lista</string>
diff --git a/app/src/main/res/values-hr/strings.xml b/app/src/main/res/values-hr/strings.xml
index 0dbe9df8a..53749048a 100644
--- a/app/src/main/res/values-hr/strings.xml
+++ b/app/src/main/res/values-hr/strings.xml
@@ -314,6 +314,8 @@
     <string name="password">Lozinka</string>
     <string name="user">Korisnik</string>
     <string name="add_account">Dodaj račun</string>
+    <string name="use_locale_default">Koristi standard jezičnog područja</string>
+    <string name="start_of_week">Početak tjedna</string>
     <string name="copy_selected_tasks">Kopirati odabrane zadatke\?</string>
     <string name="delete_selected_tasks">Izbrisati odabrane zadatke\?</string>
     <string name="copy_multiple_tasks_confirmation">%s kopirano</string>
diff --git a/app/src/main/res/values-hu/strings.xml b/app/src/main/res/values-hu/strings.xml
index 0986dc7c9..fd6b12610 100644
--- a/app/src/main/res/values-hu/strings.xml
+++ b/app/src/main/res/values-hu/strings.xml
@@ -303,6 +303,8 @@
     <string name="delete_selected_tasks">Kiválasztott feladatok törlése?</string>
     <string name="copy_selected_tasks">Kiválasztott feladatok másolása?</string>
     <string name="date_and_time">Dátum és időpont</string>
+    <string name="start_of_week">Hét kezdőnapja</string>
+    <string name="use_locale_default">Beállított nyelv alapján</string>
     <string name="add_account">Felhasználói fiók hozzáadása</string>
     <string name="user">Felhasználónév</string>
     <string name="password">Jelszó</string>
diff --git a/app/src/main/res/values-id/strings.xml b/app/src/main/res/values-id/strings.xml
index ee276cbb9..faee61d31 100644
--- a/app/src/main/res/values-id/strings.xml
+++ b/app/src/main/res/values-id/strings.xml
@@ -240,6 +240,8 @@
     <string name="delete_selected_tasks">Hapus tugas yang dipilih\?</string>
     <string name="copy_selected_tasks">Salin tugas yang dipilih\?</string>
     <string name="date_and_time">Tanggal dan waktu</string>
+    <string name="start_of_week">Awal minggu</string>
+    <string name="use_locale_default">Gunakan bahasa bawaan</string>
     <string name="add_account">Tambah akun</string>
     <string name="user">Pengguna</string>
     <string name="password">Kata sandi</string>
diff --git a/app/src/main/res/values-it/strings.xml b/app/src/main/res/values-it/strings.xml
index 81e979e07..79680e057 100644
--- a/app/src/main/res/values-it/strings.xml
+++ b/app/src/main/res/values-it/strings.xml
@@ -318,6 +318,8 @@
     <string name="delete_selected_tasks">Eliminare le attività selezionate\?</string>
     <string name="copy_selected_tasks">Copio le attività selezionate\?</string>
     <string name="date_and_time">Data e ora</string>
+    <string name="start_of_week">Inizio della settimana</string>
+    <string name="use_locale_default">Usa il valore predefinito della lingua corrente</string>
     <string name="add_account">Aggiungi account</string>
     <string name="user">Utente</string>
     <string name="notification_disable_battery_optimizations_description">L\'ottimizzazione della batteria può ritardare le notifiche</string>
diff --git a/app/src/main/res/values-iw/strings.xml b/app/src/main/res/values-iw/strings.xml
index 89b550401..3c07730db 100644
--- a/app/src/main/res/values-iw/strings.xml
+++ b/app/src/main/res/values-iw/strings.xml
@@ -340,6 +340,8 @@
     <string name="delete_selected_tasks">למחוק משימות?</string>
     <string name="copy_selected_tasks">להעתיק משימות?</string>
     <string name="date_and_time">תאריך וושעה</string>
+    <string name="start_of_week">תחילת השבוע</string>
+    <string name="use_locale_default">השתמש באזור גיאוגרפי ברירת מחדל</string>
     <string name="add_account">הוסף חשבון</string>
     <string name="user">משתמש</string>
     <string name="password">סיסמא</string>
diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
index a29aa110f..cc7282940 100644
--- a/app/src/main/res/values-ja/strings.xml
+++ b/app/src/main/res/values-ja/strings.xml
@@ -305,6 +305,8 @@
     <string name="delete_selected_tasks">選択したタスクを削除しますか？</string>
     <string name="copy_selected_tasks">選択したタスクをコピーしますか？</string>
     <string name="date_and_time">日付と時刻</string>
+    <string name="start_of_week">週の始まり</string>
+    <string name="use_locale_default">ロケールのデフォルトを使用する</string>
     <string name="add_account">アカウントを追加</string>
     <string name="user">ユーザー</string>
     <string name="password">パスワード</string>
diff --git a/app/src/main/res/values-ko/strings.xml b/app/src/main/res/values-ko/strings.xml
index 022af3efc..c7588888e 100644
--- a/app/src/main/res/values-ko/strings.xml
+++ b/app/src/main/res/values-ko/strings.xml
@@ -302,6 +302,8 @@
     <string name="delete_selected_tasks">선택한 할일을 삭제할까요?</string>
     <string name="copy_selected_tasks">선택한 할일을 복사할까요?</string>
     <string name="date_and_time">날짜와 시간</string>
+    <string name="start_of_week">한 주의 시작</string>
+    <string name="use_locale_default">기본으로 설정된 언어 사용하기</string>
     <string name="add_account">계정 추가</string>
     <string name="user">사용자</string>
     <string name="password">비밀번호</string>
diff --git a/app/src/main/res/values-lt/strings.xml b/app/src/main/res/values-lt/strings.xml
index 5026ecd29..90cd940be 100644
--- a/app/src/main/res/values-lt/strings.xml
+++ b/app/src/main/res/values-lt/strings.xml
@@ -328,6 +328,8 @@
     <string name="delete_selected_tasks">Ištrinti pažymėtas užduotis?</string>
     <string name="copy_selected_tasks">Nukopijuoti pažymėtas užduotis?</string>
     <string name="date_and_time">Data ir laikas</string>
+    <string name="start_of_week">Savaitės pradžia</string>
+    <string name="use_locale_default">Naudoti numatytą vietovę</string>
     <string name="add_account">Pridėti paskyrą</string>
     <string name="user">Vartotojas</string>
     <string name="password">Slaptažodis</string>
diff --git a/app/src/main/res/values-nb/strings.xml b/app/src/main/res/values-nb/strings.xml
index 6500540ee..d721ded33 100644
--- a/app/src/main/res/values-nb/strings.xml
+++ b/app/src/main/res/values-nb/strings.xml
@@ -328,6 +328,8 @@
     <string name="delete_selected_tasks">Slett valgte gjøremål\?</string>
     <string name="copy_selected_tasks">Kopier valgte gjøremål\?</string>
     <string name="date_and_time">Dato og tid</string>
+    <string name="start_of_week">Ukestart</string>
+    <string name="use_locale_default">Bruk forvalgt lokalitet</string>
     <string name="add_account">Legg til konto</string>
     <string name="user">Bruker</string>
     <string name="password">Passord</string>
diff --git a/app/src/main/res/values-nl/strings.xml b/app/src/main/res/values-nl/strings.xml
index 45daf4ca5..eaf241b31 100644
--- a/app/src/main/res/values-nl/strings.xml
+++ b/app/src/main/res/values-nl/strings.xml
@@ -298,6 +298,8 @@
     <string name="delete_selected_tasks">Geselecteerde taken wissen\?</string>
     <string name="copy_selected_tasks">Geselecteerde taken kopiëren\?</string>
     <string name="date_and_time">Datum en tijd</string>
+    <string name="start_of_week">Begin van de week</string>
+    <string name="use_locale_default">Gebruik locale standaard</string>
     <string name="add_account">Account toevoegen</string>
     <string name="user">Gebruiker</string>
     <string name="password">Wachtwoord</string>
diff --git a/app/src/main/res/values-or/strings.xml b/app/src/main/res/values-or/strings.xml
index 1fa2e2c75..e9aa328ed 100644
--- a/app/src/main/res/values-or/strings.xml
+++ b/app/src/main/res/values-or/strings.xml
@@ -91,6 +91,7 @@
     <string name="theme_dark">ଗାଢ଼</string>
     <string name="theme_day_night">ଦିନ/ରାତି</string>
     <string name="date_and_time">ତାରିଖ ଓ ସମୟ</string>
+    <string name="start_of_week">ସପ୍ତାହ ଆରମ୍ଭ</string>
     <string name="user">ଉପଭୋକ୍ତା</string>
     <string name="password">ପାସ୍‍ୱର୍ଡ଼</string>
     <string name="url">URL</string>
diff --git a/app/src/main/res/values-pl/strings.xml b/app/src/main/res/values-pl/strings.xml
index 3a1f76afa..46bce31f4 100644
--- a/app/src/main/res/values-pl/strings.xml
+++ b/app/src/main/res/values-pl/strings.xml
@@ -318,6 +318,8 @@
     <string name="delete_selected_tasks">Usunąć zaznaczone zadania?</string>
     <string name="copy_selected_tasks">Skopiować zaznaczone zadania?</string>
     <string name="date_and_time">Data i czas</string>
+    <string name="start_of_week">Początek tygodnia</string>
+    <string name="use_locale_default">Użyj domyślnych</string>
     <string name="add_account">Dodaj konto</string>
     <string name="user">Użytkownik</string>
     <string name="password">Hasło</string>
diff --git a/app/src/main/res/values-pt-rBR/strings.xml b/app/src/main/res/values-pt-rBR/strings.xml
index 3e5ae873b..3d57abe38 100644
--- a/app/src/main/res/values-pt-rBR/strings.xml
+++ b/app/src/main/res/values-pt-rBR/strings.xml
@@ -316,6 +316,8 @@
     <string name="delete_selected_tasks">Excluir tarefas selecionadas?</string>
     <string name="copy_selected_tasks">Copiar tarefas selecionadas?</string>
     <string name="date_and_time">Hora e data</string>
+    <string name="start_of_week">Início da semana</string>
+    <string name="use_locale_default">Usar o idioma padrão</string>
     <string name="add_account">Adicionar conta</string>
     <string name="user">Usuário</string>
     <string name="password">Senha</string>
diff --git a/app/src/main/res/values-pt/strings.xml b/app/src/main/res/values-pt/strings.xml
index 3115027ad..a2222c422 100644
--- a/app/src/main/res/values-pt/strings.xml
+++ b/app/src/main/res/values-pt/strings.xml
@@ -287,6 +287,8 @@
     <string name="delete_selected_tasks">Eliminar as tarefas selecionadas\?</string>
     <string name="copy_selected_tasks">Copiar as tarefas selecionadas?</string>
     <string name="date_and_time">Data e hora</string>
+    <string name="start_of_week">Início da semana</string>
+    <string name="use_locale_default">Usar o idioma predefinido</string>
     <string name="notification_disable_battery_optimizations_description">As otimizações da bateria podem atrasar as notificações</string>
     <string name="bundle_notifications">Agrupar notificações</string>
     <string name="list">Lista</string>
diff --git a/app/src/main/res/values-ro/strings.xml b/app/src/main/res/values-ro/strings.xml
index 328ded5da..e0155bff3 100644
--- a/app/src/main/res/values-ro/strings.xml
+++ b/app/src/main/res/values-ro/strings.xml
@@ -134,6 +134,8 @@
     <string name="password">Parolă</string>
     <string name="user">Utilizator</string>
     <string name="add_account">Adaugă un cont</string>
+    <string name="use_locale_default">Utilizează valoarea implicită a configurației locale</string>
+    <string name="start_of_week">Începutul săptămânii</string>
     <string name="date_and_time">Data și ora</string>
     <string name="copy_selected_tasks">Copiezi sarcinile selectate\?</string>
     <string name="delete_selected_tasks">Ștergi sarcinile selectate\?</string>
diff --git a/app/src/main/res/values-ru/strings.xml b/app/src/main/res/values-ru/strings.xml
index 16eb7d136..4ad9d6ae5 100644
--- a/app/src/main/res/values-ru/strings.xml
+++ b/app/src/main/res/values-ru/strings.xml
@@ -320,6 +320,8 @@
     <string name="delete_selected_tasks">Удалить выделенную(-ые) задачу(-и)?</string>
     <string name="copy_selected_tasks">Скопировать выделенные задачи?</string>
     <string name="date_and_time">Дата и время</string>
+    <string name="start_of_week">Начало недели</string>
+    <string name="use_locale_default">Как в системе</string>
     <string name="add_account">Добавить учётную запись</string>
     <string name="user">Пользователь</string>
     <string name="password">Пароль</string>
diff --git a/app/src/main/res/values-si/strings.xml b/app/src/main/res/values-si/strings.xml
index 45410413f..41393efd3 100644
--- a/app/src/main/res/values-si/strings.xml
+++ b/app/src/main/res/values-si/strings.xml
@@ -29,6 +29,7 @@
     </plurals>
     <string name="astrid_sort_order_summary">\'මගේ කාර්යයන්\', \'අද\' සහ ටැග් සඳහා Astrid හි අතින් වර්ග කිරීමේ මාදිලිය සක්‍රීය කරන්න. මෙම වර්ග කිරීමේ මාදිලිය අනාගත යාවත්කාලීනයකදී \'මාගේ පිලිවෙල\' මගින් ප්‍රතිස්ථාපනය වනු ඇත</string>
     <string name="error_adding_account">දෝෂය: %s</string>
+    <string name="use_locale_default">ස්ථාන පෙරනිමිය භාවිතා කරන්න</string>
     <string name="widget_due_date_hidden">සඟවන්න</string>
     <string name="widget_due_date_below_title">මාතෘකාවට පහළින්</string>
     <string name="widget_due_date_after_title">මාතෘකාවෙන් පසු</string>
@@ -163,6 +164,7 @@
     <string name="password">මුරපදය</string>
     <string name="user">පරිශීලක</string>
     <string name="add_account">ගිණුම එක් කරන්න</string>
+    <string name="start_of_week">සතියේ ආරම්භය</string>
     <string name="date_and_time">දිනය සහ වේලාව</string>
     <string name="copy_selected_tasks">තෝරාගත් කාර්යයන් පිටපත් කරන්නද\?</string>
     <string name="delete_selected_tasks">තෝරාගත් කාර්යයන් මකාදමන්න ද\?</string>
diff --git a/app/src/main/res/values-sk/strings.xml b/app/src/main/res/values-sk/strings.xml
index 5cc2fbe03..b899a191c 100644
--- a/app/src/main/res/values-sk/strings.xml
+++ b/app/src/main/res/values-sk/strings.xml
@@ -323,6 +323,8 @@
     <string name="delete_selected_tasks">Vymazať vybrané úlohy?</string>
     <string name="copy_selected_tasks">Kopírovať vybrané úlohy?</string>
     <string name="date_and_time">Dátum a čas</string>
+    <string name="start_of_week">Začiatok týždňa</string>
+    <string name="use_locale_default">Použi miestne predvolené nastavenia</string>
     <string name="add_account">Pridať účet</string>
     <string name="user">Užívateľ</string>
     <string name="password">Heslo</string>
diff --git a/app/src/main/res/values-sv/strings.xml b/app/src/main/res/values-sv/strings.xml
index b0a130f2e..9b3e244c6 100644
--- a/app/src/main/res/values-sv/strings.xml
+++ b/app/src/main/res/values-sv/strings.xml
@@ -308,6 +308,8 @@
     <string name="delete_selected_tasks">Ta bort valda uppgifter\?</string>
     <string name="copy_selected_tasks">Kopiera valda uppgifter\?</string>
     <string name="date_and_time">Datum och tid</string>
+    <string name="start_of_week">Början på veckan</string>
+    <string name="use_locale_default">Använd lokala inställningar</string>
     <string name="add_account">Lägg till konto</string>
     <string name="user">Användare</string>
     <string name="password">Lösenord</string>
diff --git a/app/src/main/res/values-ta/strings.xml b/app/src/main/res/values-ta/strings.xml
index 7e9414016..704faa6b1 100644
--- a/app/src/main/res/values-ta/strings.xml
+++ b/app/src/main/res/values-ta/strings.xml
@@ -275,6 +275,8 @@
     <string name="password">கடவுச்சொல்</string>
     <string name="user">பயனர்</string>
     <string name="add_account">கணக்கு சேர்க்க</string>
+    <string name="use_locale_default">இருப்பிட இயல்புநிலையைப் பயன்படுத்தவும்</string>
+    <string name="start_of_week">வாரத்தின் ஆரம்பம்</string>
     <string name="date_and_time">தேதி மற்றும் நேரம்</string>
     <string name="copy_selected_tasks">தேர்ந்தெடுக்கப்பட்ட பணிகளை நகலெடுக்கவா\?</string>
     <string name="delete_selected_tasks">தேர்ந்தெடுக்கப்பட்ட பணிகளை நீக்கவா\?</string>
diff --git a/app/src/main/res/values-th/strings.xml b/app/src/main/res/values-th/strings.xml
index a740f6cf8..d131ad122 100644
--- a/app/src/main/res/values-th/strings.xml
+++ b/app/src/main/res/values-th/strings.xml
@@ -253,6 +253,8 @@
     <string name="password">รหัสผ่าน</string>
     <string name="user">ผู้ใช้</string>
     <string name="add_account">เพิ่มบัญชี</string>
+    <string name="use_locale_default">ใช้ค่าเริ่มต้นของสถานที่</string>
+    <string name="start_of_week">ต้นสัปดาห์</string>
     <string name="date_and_time">วันที่และเวลา</string>
     <string name="copy_selected_tasks">คัดลอกงานที่เลือกหรือไม่\?</string>
     <string name="delete_selected_tasks">ลบงานที่เลือก\?</string>
diff --git a/app/src/main/res/values-tr/strings.xml b/app/src/main/res/values-tr/strings.xml
index 71be44e03..093715c24 100644
--- a/app/src/main/res/values-tr/strings.xml
+++ b/app/src/main/res/values-tr/strings.xml
@@ -309,6 +309,8 @@
     <string name="delete_selected_tasks">Seçili görevleri sil?</string>
     <string name="copy_selected_tasks">Seçili görevleri kopyala?</string>
     <string name="date_and_time">Tarih ve zaman</string>
+    <string name="start_of_week">Hafta başlangıcı</string>
+    <string name="use_locale_default">Yerel öntanımlısını kullan</string>
     <string name="add_account">Hesap ekle</string>
     <string name="user">Kullanıcı</string>
     <string name="password">Parola</string>
diff --git a/app/src/main/res/values-uk/strings.xml b/app/src/main/res/values-uk/strings.xml
index 9e9585dbc..a1f83be6a 100644
--- a/app/src/main/res/values-uk/strings.xml
+++ b/app/src/main/res/values-uk/strings.xml
@@ -320,6 +320,8 @@
     <string name="delete_selected_tasks">Видалити вибрані завдання?</string>
     <string name="copy_selected_tasks">Копіювати вибрані завдання?</string>
     <string name="date_and_time">Дата й час</string>
+    <string name="start_of_week">Початок тижня</string>
+    <string name="use_locale_default">Типово для локалі</string>
     <string name="add_account">Додати обліковий запис</string>
     <string name="user">Користувач</string>
     <string name="password">Пароль</string>
diff --git a/app/src/main/res/values-ur/strings.xml b/app/src/main/res/values-ur/strings.xml
index e3455c7c1..41e5fa383 100644
--- a/app/src/main/res/values-ur/strings.xml
+++ b/app/src/main/res/values-ur/strings.xml
@@ -362,6 +362,8 @@
     <string name="password">پاسورڈ</string>
     <string name="user">صارف</string>
     <string name="add_account">اکاؤنٹ داخل کریں</string>
+    <string name="use_locale_default">لوکل ڈیفالٹ استعمال کریں</string>
+    <string name="start_of_week">ہفتے کا آغاز</string>
     <string name="date_and_time">وقت اور تاریخ</string>
     <string name="copy_selected_tasks">منتخب ٹاسکس کاپی کریں؟</string>
     <string name="delete_selected_tasks">منتخب ٹاسکس ڈٰیلیٹ کریں؟</string>
diff --git a/app/src/main/res/values-vi/strings.xml b/app/src/main/res/values-vi/strings.xml
index 67194a376..8dd395656 100644
--- a/app/src/main/res/values-vi/strings.xml
+++ b/app/src/main/res/values-vi/strings.xml
@@ -304,6 +304,8 @@
     <string name="password">Mật khẩu</string>
     <string name="user">Người dùng</string>
     <string name="add_account">Thêm tài khoản</string>
+    <string name="use_locale_default">Sử dụng mặc định ngôn ngữ</string>
+    <string name="start_of_week">Đầu tuần</string>
     <string name="date_and_time">Ngày và thời gian</string>
     <string name="copy_selected_tasks">Sao chép các công việc đã chọn\?</string>
     <string name="delete_selected_tasks">Xoá các công việc đã chọn\?</string>
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index ae2080c0b..1987fa027 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -290,6 +290,8 @@
     <string name="delete_selected_tasks">删除已选的任务？</string>
     <string name="copy_selected_tasks">复制已选的任务？</string>
     <string name="date_and_time">日期和时间</string>
+    <string name="start_of_week">每周始于</string>
+    <string name="use_locale_default">设备默认值</string>
     <string name="add_account">添加帐号</string>
     <string name="user">用户名</string>
     <string name="password">密码</string>
diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
index 1bb99038a..d6791b30e 100644
--- a/app/src/main/res/values-zh-rTW/strings.xml
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -412,6 +412,8 @@
     <string name="password">密碼</string>
     <string name="user">使用者名稱</string>
     <string name="add_account">新增帳號</string>
+    <string name="use_locale_default">使用當地預設</string>
+    <string name="start_of_week">一週之始</string>
     <string name="date_and_time">日期與時間</string>
     <string name="copy_selected_tasks">複製選擇的工作？</string>
     <string name="delete_selected_tasks">刪除所選工作？</string>
diff --git a/app/src/main/res/values/arrays.xml b/app/src/main/res/values/arrays.xml
index 2b37df7b3..78e7cdca9 100644
--- a/app/src/main/res/values/arrays.xml
+++ b/app/src/main/res/values/arrays.xml
@@ -101,6 +101,17 @@
     <item>1</item>
   </string-array>
 
+  <string-array name="day_of_week_values">
+    <item>0</item>
+    <item>1</item>
+    <item>2</item>
+    <item>3</item>
+    <item>4</item>
+    <item>5</item>
+    <item>6</item>
+    <item>7</item>
+  </string-array>
+
   <string-array name="EPr_default_location_reminder">
     <item>@string/no_reminders</item>
     <item>@string/default_location_reminder_on_arrival</item>
diff --git a/app/src/main/res/values/keys.xml b/app/src/main/res/values/keys.xml
index 161f7505d..616ff8101 100644
--- a/app/src/main/res/values/keys.xml
+++ b/app/src/main/res/values/keys.xml
@@ -364,6 +364,7 @@
   <string name="p_default_recurrence_from">default_recurrence_from</string>
 
   <string name="debug">Debug</string>
+  <string name="p_start_of_week">start_of_week</string>
   <string name="p_bundle_notifications">bundle_notifications</string>
   <string name="p_strict_mode_vm">strict_mode_vm</string>
   <string name="p_strict_mode_thread">strict_mode_thread</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 644e86c66..23e84142e 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -415,6 +415,8 @@ File %1$s contained %2$s.\n\n
   <string name="delete_selected_tasks">Delete selected tasks?</string>
   <string name="copy_selected_tasks">Copy selected tasks?</string>
   <string name="date_and_time">Date and time</string>
+  <string name="start_of_week">Start of week</string>
+  <string name="use_locale_default">Use locale default</string>
   <string name="add_account">Add account</string>
   <string name="user">User</string>
   <string name="password">Password</string>
diff --git a/app/src/main/res/xml/preferences_date_and_time.xml b/app/src/main/res/xml/preferences_date_and_time.xml
index 4d5137512..39522e703 100644
--- a/app/src/main/res/xml/preferences_date_and_time.xml
+++ b/app/src/main/res/xml/preferences_date_and_time.xml
@@ -3,6 +3,12 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:key="@string/preference_screen">
 
+    <ListPreference
+      android:defaultValue="0"
+      android:entryValues="@array/day_of_week_values"
+      android:key="@string/p_start_of_week"
+      android:title="@string/start_of_week" />
+
     <SwitchPreferenceCompat
       android:defaultValue="false"
       android:key="@string/p_always_display_full_date"