Well, the Hijri date 15 Rabi Al Awwal 1177 corresponds to the Gregorian date Thursday, 22 September 1763. This date lies in the third month of the Hijri year 1177 AH, which is Rabi Al-Awwal of 1177 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1177/03/15 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 22 September 1763 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Rabi Al Awwal 1177 AH to its equivalent Gregorian date.
يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ لَا تَتَّخِذُوا۟ ٱلَّذِينَ ٱتَّخَذُوا۟ دِينَكُمْ هُزُوًۭا وَلَعِبًۭا مِّنَ ٱلَّذِينَ أُوتُوا۟ ٱلْكِتَٰبَ مِن قَبْلِكُمْ وَٱلْكُفَّارَ أَوْلِيَآءَ ۚ وَٱتَّقُوا۟ ٱللَّهَ إِن كُنتُم مُّؤْمِنِينَ
O Ye who believe! Choose not for guardians such of those who received the Scripture before you, and of the disbelievers, as make a jest and sport of your religion. But keep your duty to Allah if ye are true believers.
Surah Al-Maaida(5:57)