Well, the Hijri date 22 Rajab 1521 corresponds to the Gregorian date Sunday, 27 October 2097. This date lies in the seventh month of the Hijri year 1521 AH, which is Rajab of 1521 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1521/07/22 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 27 October 2097 to its equivalent Arabic date.
The following is the conversion of the Arabic date 22 Rajab 1521 AH to its equivalent Gregorian date.
ٱلَّذِينَ ءَامَنُوا۟ وَهَاجَرُوا۟ وَجَٰهَدُوا۟ فِى سَبِيلِ ٱللَّهِ بِأَمْوَٰلِهِمْ وَأَنفُسِهِمْ أَعْظَمُ دَرَجَةً عِندَ ٱللَّهِ ۚ وَأُو۟لَٰٓئِكَ هُمُ ٱلْفَآئِزُونَ
Those who believe, and have left their homes and striven with their wealth and their lives in Allah's way are of much greater worth in Allah's sight. These are they who are triumphant.
Surah At-Tawba(9:20)