Well, the Hijri date 15 Rajab 1231 corresponds to the Gregorian date Monday, 10 June 1816. This date lies in the seventh month of the Hijri year 1231 AH, which is Rajab of 1231 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1231/07/15 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 10 June 1816 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Rajab 1231 AH to its equivalent Gregorian date.
وَمِنْهُم مَّن يُؤْمِنُ بِهِۦ وَمِنْهُم مَّن لَّا يُؤْمِنُ بِهِۦ ۚ وَرَبُّكَ أَعْلَمُ بِٱلْمُفْسِدِينَ
And of them is he who believeth therein, and of them is he who believeth not therein, and thy Lord is Best Aware of the corrupters.
Surah Yunus(10:40)
