Well, the Hijri date 19 Dhul Hijjah 1177 corresponds to the Gregorian date Monday, 18 June 1764. This date lies in the twelfth month of the Hijri year 1177 AH, which is Dhu Al-Hijjah of 1177 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1177/12/19 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 18 June 1764 to its equivalent Arabic date.
The following is the conversion of the Arabic date 19 Dhul Hijjah 1177 AH to its equivalent Gregorian date.
سَلْهُمْ أَيُّهُم بِذَٰلِكَ زَعِيمٌ
Ask them (O Muhammad) which of them will vouch for that!
Surah Al-Qalam(68:40)