Well, the Hijri date 28 Rajab 1191 corresponds to the Gregorian date Sunday, 31 August 1777. This date lies in the seventh month of the Hijri year 1191 AH, which is Rajab of 1191 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1191/07/28 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 31 August 1777 to its equivalent Arabic date.
The following is the conversion of the Arabic date 28 Rajab 1191 AH to its equivalent Gregorian date.
قُلْ هُوَ نَبَؤٌا۟ عَظِيمٌ
Say: It is tremendous tidings
Surah Saad(38:67)