Well, the Hijri date 13 Rajab 1350 corresponds to the Gregorian date Sunday, 22 November 1931. This date lies in the seventh month of the Hijri year 1350 AH, which is Rajab of 1350 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1350/07/13 is calculated using the Umm Al-Qura calendar and the sighting of the moon. One thing to remember is that this Arabic date may occur on different Gregorian date depending upon the region and country and obviously the moon.
If you are still not sure about the date then you can use our Arabic date converter.
The following is the conversion of the Gregorian date 22 November 1931 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Rajab 1350 AH to its equivalent Gregorian date.
فَقُلْتُ ٱسْتَغْفِرُوا۟ رَبَّكُمْ إِنَّهُۥ كَانَ غَفَّارًۭا
And I have said: Seek pardon of your Lord. Lo! He was ever Forgiving.
Surah Nooh(71:10)