Add Hijri calendar in Urdu

Allows users to select their preferred calendar from Preferences.

Bug: T145266
Change-Id: I7299d0f84f629da781b100c4db6b2a30a7d1bb86

languages/messages/MessagesUr.php

@@ -358,3 +358,23 @@ $magicWords = [
 
 # LinkTrail for Urdu language
 $linkTrail = "/^([ابپتٹثجچحخدڈذر​ڑ​زژسشصضطظعغفقکگل​م​نوؤہھیئےآأءۃ]+)(.*)$/sDu";
+
+$defaultDateFormat = 'dmy';
+
+$dateFormats = [
+	'dmy time' => 'H:i',
+	'dmy date' => 'j xg Yء', # Urdu sign of year
+	'dmy both' => 'H:i، j xg Yء', # Urdu sign of year and comma
+
+	'ymd time' => 'H:i',
+	'ymd date' => 'Yء xg j', # Urdu sign of year
+	'ymd both' => 'H:i، Yء xg j', # Urdu sign of year and comma
+
+	'hijri time' => 'H:i',
+	'hijri date' => 'xmj xmF xmYھ', # Urdu sign of hijri year
+	'hijri both' => 'H:i، xmj xmF xmYھ', # Urdu sign of hijri year and comma
+
+	'jMY time' => 'H:i',
+	'jMY date' => 'j M Yء', # Urdu sign of year
+	'jMY both' => 'H:i، j M Yء', # Urdu sign of year and comma
+];