Well, the Hijri date 21 Rajab 1157 corresponds to the Gregorian date Saturday, 29 August 1744. This date lies in the seventh month of the Hijri year 1157 AH, which is Rajab of 1157 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1157/07/21 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 29 August 1744 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Rajab 1157 AH to its equivalent Gregorian date.
مَا يُبَدَّلُ ٱلْقَوْلُ لَدَىَّ وَمَآ أَنَا۠ بِظَلَّٰمٍۢ لِّلْعَبِيدِ
The sentence that cometh from Me cannot be changed, and I am in no wise a tyrant unto the slaves.
Surah Qaaf(50:29)