Well, the Hijri date 28 Shawwal 1156 corresponds to the Gregorian date Sunday, 15 December 1743. This date lies in the tenth month of the Hijri year 1156 AH, which is Shawwal of 1156 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1156/10/28 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 15 December 1743 to its equivalent Arabic date.
The following is the conversion of the Arabic date 28 Shawwal 1156 AH to its equivalent Gregorian date.
فَأَقِمْ وَجْهَكَ لِلدِّينِ ٱلْقَيِّمِ مِن قَبْلِ أَن يَأْتِىَ يَوْمٌۭ لَّا مَرَدَّ لَهُۥ مِنَ ٱللَّهِ ۖ يَوْمَئِذٍۢ يَصَّدَّعُونَ
So set thy purpose resolutely for the right religion, before the inevitable day cometh from Allah. On that day mankind will be sundered-
Surah Ar-Room(30:43)