diff --git a/lawnchair/res/values/config.xml b/lawnchair/res/values/config.xml
index d83152f463..cb5827a882 100644
--- a/lawnchair/res/values/config.xml
+++ b/lawnchair/res/values/config.xml
@@ -44,6 +44,9 @@
     <!-- Which icon shape to use by default -->
     <string name="config_default_icon_shape" translatable="false">circle</string>
 
+    <!-- Which calendar to use on smartspace by default -->
+    <string name="config_default_smart_space_calendar" translatable="false">gregorian</string>
+
     <bool name="config_default_dark_status_bar">false</bool>
     <bool name="config_default_dock_search_bar">true</bool>
     <bool name="config_default_show_notification_count">false</bool>
diff --git a/lawnchair/res/values/strings.xml b/lawnchair/res/values/strings.xml
index 0673aebc77..f92c759b49 100644
--- a/lawnchair/res/values/strings.xml
+++ b/lawnchair/res/values/strings.xml
@@ -233,7 +233,8 @@
 
     <!-- Smartspace -->
     <string name="generic_smartspace_concatenated_desc">%1$s, %2$s</string>
-    <string name="smartspace_icu_date_pattern" translatable="false">EEEMMMd</string>
+    <string name="smartspace_icu_date_pattern_gregorian" translatable="false">EEEMMMd</string>
+    <string name="smartspace_icu_date_pattern_persian" translatable="false">l، j F</string>
     <string name="smartspace_battery_charging">Charging</string>
     <string name="smartspace_battery_full">Charged</string>
     <string name="smartspace_battery_low">Battery Low</string>
@@ -245,6 +246,7 @@
     <string name="quickstep_incompatible_description">Your device is configured to have system gestures (known as Quickstep) provided by %1$s, but this version of %1$s is not compatible with your Android version. To continue using your device, please uninstall %1$s updates or disable %1$s as a system-gesture provider.</string>
 
     <string name="preview_label">Preview</string>
+    <string name="smartspace_calendar">Calendar</string>
     <string name="smartspace_weather">Weather</string>
     <string name="smartspace_battery_status">Battery Status</string>
     <string name="smartspace_now_playing">Now Playing</string>
@@ -252,6 +254,9 @@
     <string name="event_provider_missing_notification_dots">To use <xliff:g example="My Provider" id="providerName">%1$s</xliff:g>, enable Notification Dots.</string>
     <string name="smartspace_media_info_separator">" — "</string>
 
+    <string name="smartspace_calendar_gregorian">Gregorian</string>
+    <string name="smartspace_calendar_persian">Persian</string>
+
     <string name="pref_fonts_add_fonts">Add Fonts</string>
     <string name="pref_fonts_add_fonts_summary">OTF &amp; TTF supported.</string>
     <string name="delete">Delete</string>
diff --git a/lawnchair/src/app/lawnchair/preferences2/PreferenceManager2.kt b/lawnchair/src/app/lawnchair/preferences2/PreferenceManager2.kt
index 0b545cb69a..b84e97d2b9 100644
--- a/lawnchair/src/app/lawnchair/preferences2/PreferenceManager2.kt
+++ b/lawnchair/src/app/lawnchair/preferences2/PreferenceManager2.kt
@@ -26,6 +26,7 @@ import app.lawnchair.icons.CustomAdaptiveIconDrawable
 import app.lawnchair.icons.shape.IconShape
 import app.lawnchair.icons.shape.IconShapeManager
 import app.lawnchair.qsb.providers.QsbSearchProvider
+import app.lawnchair.smartspace.model.SmartspaceCalendar
 import app.lawnchair.theme.color.ColorOption
 import com.android.launcher3.InvariantDeviceProfile
 import com.android.launcher3.LauncherAppState
@@ -276,6 +277,13 @@ class PreferenceManager2(private val context: Context) : PreferenceManager {
         defaultValue = true
     )
 
+    val smartspaceCalendar = preference(
+        key = stringPreferencesKey(name = "smartspace_calendar"),
+        defaultValue = SmartspaceCalendar.fromString(context.getString(R.string.config_default_smart_space_calendar)),
+        parse = { SmartspaceCalendar.fromString(it) },
+        save = { it.toString() },
+    )
+
     init {
         initializeIconShape(iconShape.firstBlocking())
         iconShape.get()
diff --git a/lawnchair/src/app/lawnchair/smartspace/IcuDateTextView.kt b/lawnchair/src/app/lawnchair/smartspace/IcuDateTextView.kt
index 4afcbb081d..9d446e853f 100644
--- a/lawnchair/src/app/lawnchair/smartspace/IcuDateTextView.kt
+++ b/lawnchair/src/app/lawnchair/smartspace/IcuDateTextView.kt
@@ -8,14 +8,23 @@ import android.icu.text.DateFormat
 import android.icu.text.DisplayContext
 import android.os.SystemClock
 import android.util.AttributeSet
+import app.lawnchair.preferences2.PreferenceManager2
+import app.lawnchair.preferences2.subscribeBlocking
+import app.lawnchair.smartspace.model.SmartspaceCalendar
+import app.lawnchair.util.viewAttachedScope
 import com.android.launcher3.R
+import saman.zamani.persiandate.PersianDate
+import saman.zamani.persiandate.PersianDateFormat
 import java.util.*
 
 class IcuDateTextView @JvmOverloads constructor(
     context: Context, attrs: AttributeSet? = null
 ) : DoubleShadowTextView(context, attrs) {
 
-    private var formatter: DateFormat? = null
+    private lateinit var preferenceManager2: PreferenceManager2
+    private var calendar: SmartspaceCalendar? = null
+    private var formatterGregorian: DateFormat? = null
+    private var formatterPersian: PersianDateFormat? = null
     private val ticker = this::onTimeTick
     private val intentReceiver = object : BroadcastReceiver() {
         override fun onReceive(context: Context, intent: Intent) {
@@ -39,27 +48,50 @@ class IcuDateTextView @JvmOverloads constructor(
 
     private fun onTimeChanged(updateFormatter: Boolean) {
         if (isShown) {
-            if (formatter == null || updateFormatter) {
-                val formatter: DateFormat = DateFormat.getInstanceForSkeleton(
-                    context.getString(R.string.smartspace_icu_date_pattern), Locale.getDefault()
-                )
-                this.formatter = formatter
-                formatter.setContext(DisplayContext.CAPITALIZATION_FOR_BEGINNING_OF_SENTENCE)
+            val format = when (calendar) {
+                SmartspaceCalendar.Persian -> getTimeTextPersian(updateFormatter = updateFormatter)
+                else -> getTimeTextGregorian(updateFormatter = updateFormatter)
             }
-            val format = formatter!!.format(java.lang.Long.valueOf(System.currentTimeMillis()))
             if (text != format) {
+                textAlignment =
+                    if (calendar == SmartspaceCalendar.Persian) TEXT_ALIGNMENT_TEXT_END else TEXT_ALIGNMENT_TEXT_START
                 text = format
                 contentDescription = format
             }
         }
     }
 
+    private fun getTimeTextPersian(updateFormatter: Boolean): String {
+        val formatter = formatterPersian.takeIf { updateFormatter.not() } ?: PersianDateFormat(
+            context.getString(R.string.smartspace_icu_date_pattern_persian),
+            PersianDateFormat.PersianDateNumberCharacter.FARSI,
+        ).also { formatterPersian = it }
+        return formatter.format(PersianDate(java.lang.Long.valueOf(System.currentTimeMillis())))
+    }
+
+    private fun getTimeTextGregorian(updateFormatter: Boolean): String {
+        val formatter = formatterGregorian.takeIf { updateFormatter.not() }
+            ?: DateFormat.getInstanceForSkeleton(
+                context.getString(R.string.smartspace_icu_date_pattern_gregorian),
+                Locale.getDefault()
+            ).also { formatterGregorian = it }
+        return formatter.format(java.lang.Long.valueOf(System.currentTimeMillis()))
+    }
+
     private fun onTimeTick() {
         onTimeChanged(false)
         val uptimeMillis: Long = SystemClock.uptimeMillis()
         handler?.postAtTime(ticker, uptimeMillis + (1000 - uptimeMillis % 1000))
     }
 
+    override fun onFinishInflate() {
+        super.onFinishInflate()
+        preferenceManager2 = PreferenceManager2.getInstance(context)
+        preferenceManager2.smartspaceCalendar.subscribeBlocking(scope = viewAttachedScope) {
+            calendar = it
+        }
+    }
+
     override fun onVisibilityAggregated(isVisible: Boolean) {
         super.onVisibilityAggregated(isVisible)
         handler?.removeCallbacks(ticker)
diff --git a/lawnchair/src/app/lawnchair/smartspace/model/SmartspaceCalendar.kt b/lawnchair/src/app/lawnchair/smartspace/model/SmartspaceCalendar.kt
new file mode 100644
index 0000000000..3b67e1e0fb
--- /dev/null
+++ b/lawnchair/src/app/lawnchair/smartspace/model/SmartspaceCalendar.kt
@@ -0,0 +1,31 @@
+package app.lawnchair.smartspace.model
+
+import androidx.annotation.StringRes
+import com.android.launcher3.R
+
+/**
+ * Contains the data of a single calendar system for smartspace.
+ */
+open class SmartspaceCalendar(@StringRes val nameResourceId: Int) {
+
+    companion object {
+
+        fun fromString(value: String): SmartspaceCalendar = when (value) {
+            "persian" -> Persian
+            else -> Gregorian
+        }
+
+        /**
+         * @return The list of all calendars.
+         */
+        fun values() = listOf(Gregorian, Persian)
+    }
+
+    object Gregorian : SmartspaceCalendar(nameResourceId = R.string.smartspace_calendar_gregorian) {
+        override fun toString() = "gregorian"
+    }
+    object Persian : SmartspaceCalendar(nameResourceId = R.string.smartspace_calendar_persian) {
+        override fun toString() = "persian"
+    }
+
+}
\ No newline at end of file
diff --git a/lawnchair/src/app/lawnchair/ui/preferences/SmartspacePreferences.kt b/lawnchair/src/app/lawnchair/ui/preferences/SmartspacePreferences.kt
index 6648d5a5a9..4a9630bfd0 100644
--- a/lawnchair/src/app/lawnchair/ui/preferences/SmartspacePreferences.kt
+++ b/lawnchair/src/app/lawnchair/ui/preferences/SmartspacePreferences.kt
@@ -21,7 +21,10 @@ import androidx.navigation.NavGraphBuilder
 import app.lawnchair.preferences.getAdapter
 import app.lawnchair.preferences2.preferenceManager2
 import app.lawnchair.smartspace.SmartspaceViewContainer
+import app.lawnchair.smartspace.model.SmartspaceCalendar
 import app.lawnchair.smartspace.provider.SmartspaceProvider
+import app.lawnchair.ui.preferences.components.ListPreference
+import app.lawnchair.ui.preferences.components.ListPreferenceEntry
 import app.lawnchair.ui.preferences.components.PreferenceGroup
 import app.lawnchair.ui.preferences.components.PreferenceLayout
 import app.lawnchair.ui.preferences.components.SwitchPreference
@@ -59,6 +62,7 @@ fun SmartspacePreferences(fromWidget: Boolean) {
                         heading = stringResource(id = R.string.what_to_show),
                         modifier = Modifier.padding(top = 8.dp),
                     ) {
+                        SmartspaceCalendarPreference()
                         smartspaceProvider.dataSources
                             .filter { it.isAvailable }
                             .forEach {
@@ -105,3 +109,22 @@ fun SmartspacePreview() {
         }
     }
 }
+
+@Composable
+fun SmartspaceCalendarPreference() {
+
+    val entries = remember {
+        SmartspaceCalendar.values().map { calendar ->
+            ListPreferenceEntry(calendar) { stringResource(id = calendar.nameResourceId) }
+        }
+    }
+
+    val adapter = preferenceManager2().smartspaceCalendar.getAdapter()
+
+    ListPreference(
+        adapter = adapter,
+        entries = entries,
+        label = stringResource(id = R.string.smartspace_calendar),
+    )
+}
+