diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 33fcd1cb8..d2c6f9b07 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -22,7 +22,8 @@
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_launcher_name"
         android:roundIcon="@mipmap/ic_launcher"
-        android:theme="@style/AppTheme">
+        android:theme="@style/AppTheme"
+        android:supportsRtl="true">
 
         <activity
             android:name=".activities.SplashActivity"
diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/pro/fragments/DayFragment.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/pro/fragments/DayFragment.kt
index e577c30a7..a117067a6 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/pro/fragments/DayFragment.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/pro/fragments/DayFragment.kt
@@ -1,6 +1,7 @@
 package com.simplemobiletools.calendar.pro.fragments
 
 import android.content.Intent
+import android.graphics.drawable.Drawable
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
@@ -8,6 +9,7 @@ import android.view.ViewGroup
 import android.widget.DatePicker
 import android.widget.RelativeLayout
 import androidx.appcompat.app.AlertDialog
+import androidx.core.content.res.ResourcesCompat
 import androidx.fragment.app.Fragment
 import com.simplemobiletools.calendar.pro.R
 import com.simplemobiletools.calendar.pro.activities.EventActivity
@@ -76,6 +78,19 @@ class DayFragment : Fragment() {
             setOnClickListener { pickDay() }
             setTextColor(context.config.textColor)
         }
+
+        // support RTL
+        val pointerLeft : Drawable? = ResourcesCompat.getDrawable(resources,R.drawable.ic_pointer_left,null)
+        if(pointerLeft != null) {
+            pointerLeft.isAutoMirrored = true
+            mHolder.top_left_arrow.setImageDrawable(pointerLeft)
+        }
+
+        val pointerRight : Drawable? = ResourcesCompat.getDrawable(resources,R.drawable.ic_pointer_right,null)
+        if(pointerRight != null) {
+            pointerRight.isAutoMirrored = true
+            mHolder.top_right_arrow.setImageDrawable(pointerRight)
+        }
     }
 
     private fun pickDay() {
diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/pro/fragments/MonthFragment.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/pro/fragments/MonthFragment.kt
index dacca33e8..91ca5c960 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/pro/fragments/MonthFragment.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/pro/fragments/MonthFragment.kt
@@ -2,6 +2,7 @@ package com.simplemobiletools.calendar.pro.fragments
 
 import android.content.Context
 import android.content.res.Resources
+import android.graphics.drawable.Drawable
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
@@ -9,6 +10,8 @@ import android.view.ViewGroup
 import android.widget.DatePicker
 import android.widget.RelativeLayout
 import androidx.appcompat.app.AlertDialog
+import androidx.core.content.ContextCompat
+import androidx.core.content.res.ResourcesCompat
 import androidx.fragment.app.Fragment
 import com.simplemobiletools.calendar.pro.R
 import com.simplemobiletools.calendar.pro.activities.MainActivity
@@ -131,6 +134,19 @@ class MonthFragment : Fragment(), MonthlyCalendar {
                 showMonthDialog()
             }
         }
+
+        // support RTL
+        val pointerLeft :Drawable? = ResourcesCompat.getDrawable(resources,R.drawable.ic_pointer_left,null)
+        if(pointerLeft != null) {
+            pointerLeft.isAutoMirrored = true
+            mHolder.top_left_arrow.setImageDrawable(pointerLeft)
+        }
+
+        val pointerRight :Drawable? = ResourcesCompat.getDrawable(resources,R.drawable.ic_pointer_right,null)
+        if(pointerRight != null) {
+            pointerRight.isAutoMirrored = true
+            mHolder.top_right_arrow.setImageDrawable(pointerRight)
+        }
     }
 
     private fun showMonthDialog() {
diff --git a/app/src/main/res/layout/calendar_item_calendar.xml b/app/src/main/res/layout/calendar_item_calendar.xml
index 4aefba01c..e6feacf8a 100644
--- a/app/src/main/res/layout/calendar_item_calendar.xml
+++ b/app/src/main/res/layout/calendar_item_calendar.xml
@@ -14,8 +14,8 @@
         android:background="@null"
         android:clickable="false"
         android:paddingBottom="@dimen/activity_margin"
-        android:paddingLeft="@dimen/big_margin"
-        android:paddingRight="@dimen/activity_margin"
+        android:paddingStart="@dimen/big_margin"
+        android:paddingEnd="@dimen/activity_margin"
         android:paddingTop="@dimen/activity_margin"
         tools:text="Calendar name"/>
 
diff --git a/app/src/main/res/layout/event_item_day_view.xml b/app/src/main/res/layout/event_item_day_view.xml
index a33b7c948..b145bb26e 100644
--- a/app/src/main/res/layout/event_item_day_view.xml
+++ b/app/src/main/res/layout/event_item_day_view.xml
@@ -9,7 +9,7 @@
     android:clickable="true"
     android:focusable="true"
     android:foreground="@drawable/selector"
-    android:paddingLeft="@dimen/activity_margin">
+    android:paddingStart="@dimen/activity_margin">
 
     <RelativeLayout
         android:id="@+id/event_item_holder"
@@ -24,7 +24,7 @@
             android:layout_height="match_parent"
             android:layout_alignBottom="@+id/event_item_description"
             android:layout_alignTop="@+id/event_item_title"
-            android:layout_marginRight="@dimen/small_margin"
+            android:layout_marginEnd="@dimen/small_margin"
             android:background="@drawable/event_list_color_bar"
             android:paddingBottom="@dimen/tiny_margin"
             android:paddingTop="@dimen/tiny_margin"/>
@@ -33,7 +33,7 @@
             android:id="@+id/event_item_start"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_toRightOf="@+id/event_item_color_bar"
+            android:layout_toEndOf="@+id/event_item_color_bar"
             android:textSize="@dimen/day_text_size"
             tools:text="13:00"/>
 
@@ -42,7 +42,7 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_below="@+id/event_item_start"
-            android:layout_toRightOf="@+id/event_item_color_bar"
+            android:layout_toEndOf="@+id/event_item_color_bar"
             android:text="15:00"
             android:textSize="@dimen/day_text_size"/>
 
@@ -50,11 +50,11 @@
             android:id="@+id/event_item_title"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_marginLeft="@dimen/activity_margin"
-            android:layout_toRightOf="@+id/event_item_start"
+            android:layout_marginStart="@dimen/activity_margin"
+            android:layout_toEndOf="@+id/event_item_start"
             android:ellipsize="end"
             android:maxLines="1"
-            android:paddingRight="@dimen/activity_margin"
+            android:paddingEnd="@dimen/activity_margin"
             android:textSize="@dimen/day_text_size"
             tools:text="Event title"/>
 
@@ -63,11 +63,11 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_below="@+id/event_item_title"
-            android:layout_marginLeft="@dimen/activity_margin"
-            android:layout_toRightOf="@+id/event_item_end"
+            android:layout_marginStart="@dimen/activity_margin"
+            android:layout_toEndOf="@+id/event_item_end"
             android:ellipsize="end"
             android:maxLines="1"
-            android:paddingRight="@dimen/activity_margin"
+            android:paddingEnd="@dimen/activity_margin"
             android:textSize="@dimen/day_text_size"
             tools:text="Event description"/>
 
diff --git a/app/src/main/res/layout/event_item_day_view_simple.xml b/app/src/main/res/layout/event_item_day_view_simple.xml
index a97b0b7e3..c7f2b8bfe 100644
--- a/app/src/main/res/layout/event_item_day_view_simple.xml
+++ b/app/src/main/res/layout/event_item_day_view_simple.xml
@@ -9,14 +9,14 @@
     android:clickable="true"
     android:focusable="true"
     android:foreground="@drawable/selector"
-    android:paddingLeft="@dimen/activity_margin">
+    android:paddingStart="@dimen/activity_margin">
 
     <RelativeLayout
         android:id="@+id/event_item_holder"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:paddingBottom="@dimen/medium_margin"
-        android:paddingRight="@dimen/activity_margin"
+        android:paddingEnd="@dimen/activity_margin"
         android:paddingTop="@dimen/medium_margin">
 
         <ImageView
@@ -25,7 +25,7 @@
             android:layout_height="match_parent"
             android:layout_alignBottom="@+id/event_item_start"
             android:layout_alignTop="@+id/event_item_start"
-            android:layout_marginRight="@dimen/small_margin"
+            android:layout_marginEnd="@dimen/small_margin"
             android:background="@drawable/event_list_color_bar"
             android:paddingBottom="@dimen/tiny_margin"
             android:paddingTop="@dimen/tiny_margin"/>
@@ -34,7 +34,7 @@
             android:id="@+id/event_item_start"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_toRightOf="@+id/event_item_color_bar"
+            android:layout_toEndOf="@+id/event_item_color_bar"
             android:textSize="@dimen/day_text_size"
             tools:text="13:00"/>
 
@@ -42,11 +42,11 @@
             android:id="@+id/event_item_title"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_marginLeft="@dimen/activity_margin"
-            android:layout_toRightOf="@+id/event_item_start"
+            android:layout_marginStart="@dimen/activity_margin"
+            android:layout_toEndOf="@+id/event_item_start"
             android:ellipsize="end"
             android:maxLines="1"
-            android:paddingRight="@dimen/activity_margin"
+            android:paddingEnd="@dimen/activity_margin"
             android:textSize="@dimen/day_text_size"
             tools:text="Event title"/>
 
diff --git a/app/src/main/res/layout/event_list_item.xml b/app/src/main/res/layout/event_list_item.xml
index 61b2902c5..6db8bd62c 100644
--- a/app/src/main/res/layout/event_list_item.xml
+++ b/app/src/main/res/layout/event_list_item.xml
@@ -9,14 +9,14 @@
     android:clickable="true"
     android:focusable="true"
     android:foreground="@drawable/selector"
-    android:paddingLeft="@dimen/activity_margin">
+    android:paddingStart="@dimen/activity_margin">
 
     <RelativeLayout
         android:id="@+id/event_item_holder"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:paddingBottom="@dimen/medium_margin"
-        android:paddingRight="@dimen/activity_margin"
+        android:paddingEnd="@dimen/activity_margin"
         android:paddingTop="@dimen/small_margin">
 
         <ImageView
@@ -25,7 +25,7 @@
             android:layout_height="match_parent"
             android:layout_alignBottom="@+id/event_item_end"
             android:layout_alignTop="@+id/event_item_start"
-            android:layout_marginRight="@dimen/small_margin"
+            android:layout_marginEnd="@dimen/small_margin"
             android:background="@drawable/event_list_color_bar"
             android:paddingBottom="@dimen/tiny_margin"
             android:paddingTop="@dimen/tiny_margin"/>
@@ -34,7 +34,7 @@
             android:id="@+id/event_item_start"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_toRightOf="@+id/event_item_color_bar"
+            android:layout_toEndOf="@+id/event_item_color_bar"
             android:textSize="@dimen/day_text_size"
             tools:text="13:00"/>
 
@@ -43,7 +43,7 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_below="@+id/event_item_start"
-            android:layout_toRightOf="@+id/event_item_color_bar"
+            android:layout_toEndOf="@+id/event_item_color_bar"
             android:includeFontPadding="false"
             android:text="15:00"
             android:textSize="@dimen/day_text_size"/>
@@ -52,11 +52,11 @@
             android:id="@+id/event_item_title"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_marginLeft="@dimen/activity_margin"
-            android:layout_toRightOf="@+id/event_item_start"
+            android:layout_marginStart="@dimen/activity_margin"
+            android:layout_toEndOf="@+id/event_item_start"
             android:ellipsize="end"
             android:maxLines="1"
-            android:paddingRight="@dimen/activity_margin"
+            android:paddingEnd="@dimen/activity_margin"
             android:textSize="@dimen/day_text_size"
             tools:text="Event title"/>
 
@@ -65,12 +65,12 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_below="@+id/event_item_title"
-            android:layout_marginLeft="@dimen/activity_margin"
-            android:layout_toRightOf="@+id/event_item_end"
+            android:layout_marginStart="@dimen/activity_margin"
+            android:layout_toEndOf="@+id/event_item_end"
             android:ellipsize="end"
             android:includeFontPadding="false"
             android:maxLines="1"
-            android:paddingRight="@dimen/activity_margin"
+            android:paddingEnd="@dimen/activity_margin"
             android:textSize="@dimen/day_text_size"
             tools:text="Event description"/>
 
diff --git a/app/src/main/res/layout/event_list_item_simple.xml b/app/src/main/res/layout/event_list_item_simple.xml
index e20b4eeb8..000456189 100644
--- a/app/src/main/res/layout/event_list_item_simple.xml
+++ b/app/src/main/res/layout/event_list_item_simple.xml
@@ -9,14 +9,14 @@
     android:clickable="true"
     android:focusable="true"
     android:foreground="@drawable/selector"
-    android:paddingLeft="@dimen/activity_margin">
+    android:paddingStart="@dimen/activity_margin">
 
     <RelativeLayout
         android:id="@+id/event_item_holder"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:paddingBottom="@dimen/medium_margin"
-        android:paddingRight="@dimen/activity_margin"
+        android:paddingEnd="@dimen/activity_margin"
         android:paddingTop="@dimen/small_margin">
 
         <ImageView
@@ -25,7 +25,7 @@
             android:layout_height="match_parent"
             android:layout_alignBottom="@+id/event_item_start"
             android:layout_alignTop="@+id/event_item_start"
-            android:layout_marginRight="@dimen/small_margin"
+            android:layout_marginEnd="@dimen/small_margin"
             android:background="@drawable/event_list_color_bar"
             android:paddingBottom="@dimen/tiny_margin"
             android:paddingTop="@dimen/tiny_margin"/>
@@ -34,7 +34,7 @@
             android:id="@+id/event_item_start"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_toRightOf="@+id/event_item_color_bar"
+            android:layout_toEndOf="@+id/event_item_color_bar"
             android:textSize="@dimen/day_text_size"
             tools:text="13:00"/>
 
@@ -42,11 +42,11 @@
             android:id="@+id/event_item_title"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_marginLeft="@dimen/activity_margin"
-            android:layout_toRightOf="@+id/event_item_start"
+            android:layout_marginStart="@dimen/activity_margin"
+            android:layout_toEndOf="@+id/event_item_start"
             android:ellipsize="end"
             android:maxLines="1"
-            android:paddingRight="@dimen/activity_margin"
+            android:paddingEnd="@dimen/activity_margin"
             android:textSize="@dimen/day_text_size"
             tools:text="Event title"/>
 
diff --git a/app/src/main/res/layout/fragment_week_holder.xml b/app/src/main/res/layout/fragment_week_holder.xml
index b92a2ff7b..ae4290790 100644
--- a/app/src/main/res/layout/fragment_week_holder.xml
+++ b/app/src/main/res/layout/fragment_week_holder.xml
@@ -16,7 +16,7 @@
             android:id="@+id/week_view_hours_divider"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:layout_alignRight="@+id/week_view_hours_scrollview"
+            android:layout_alignEnd="@+id/week_view_hours_scrollview"
             android:background="@drawable/stroke_bottom_right"
             android:importantForAccessibility="no"/>
 
@@ -43,7 +43,7 @@
             android:id="@+id/week_view_view_pager"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
-            android:layout_toRightOf="@+id/week_view_hours_scrollview"/>
+            android:layout_toEndOf="@+id/week_view_hours_scrollview"/>
 
     </RelativeLayout>
 </LinearLayout>
diff --git a/app/src/main/res/layout/top_navigation.xml b/app/src/main/res/layout/top_navigation.xml
index a3ada46ad..853f458e8 100644
--- a/app/src/main/res/layout/top_navigation.xml
+++ b/app/src/main/res/layout/top_navigation.xml
@@ -12,15 +12,16 @@
         android:layout_alignTop="@+id/top_value"
         android:paddingLeft="@dimen/activity_margin"
         android:paddingRight="@dimen/activity_margin"
-        android:src="@drawable/ic_pointer_left"/>
+        android:src="@drawable/ic_pointer_left"
+        android:autoMirrored="true"/>
 
     <com.simplemobiletools.commons.views.MyTextView
         android:id="@+id/top_value"
         style="@style/MonthStyle"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_toLeftOf="@+id/top_right_arrow"
-        android:layout_toRightOf="@+id/top_left_arrow"
+        android:layout_toStartOf="@+id/top_right_arrow"
+        android:layout_toEndOf="@+id/top_left_arrow"
         android:gravity="center"
         android:paddingBottom="@dimen/normal_margin"
         android:paddingTop="@dimen/normal_margin"
@@ -32,10 +33,11 @@
         android:layout_width="wrap_content"
         android:layout_height="match_parent"
         android:layout_alignBottom="@+id/top_value"
-        android:layout_alignParentRight="true"
+        android:layout_alignParentEnd="true"
         android:layout_alignTop="@+id/top_value"
         android:paddingLeft="@dimen/activity_margin"
         android:paddingRight="@dimen/activity_margin"
-        android:src="@drawable/ic_pointer_right"/>
+        android:src="@drawable/ic_pointer_right"
+        android:autoMirrored="true"/>
 
 </merge>