Well, the Hijri date 28 Shaban 1236 corresponds to the Gregorian date Wednesday, 30 May 1821. This date lies in the eighth month of the Hijri year 1236 AH, which is Shaban of 1236 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1236/08/28 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 30 May 1821 to its equivalent Arabic date.
The following is the conversion of the Arabic date 28 Shaban 1236 AH to its equivalent Gregorian date.
لِّلَّهِ مُلْكُ ٱلسَّمَٰوَٰتِ وَٱلْأَرْضِ ۚ يَخْلُقُ مَا يَشَآءُ ۚ يَهَبُ لِمَن يَشَآءُ إِنَٰثًۭا وَيَهَبُ لِمَن يَشَآءُ ٱلذُّكُورَ
Unto Allah belongeth the Sovereignty of the heavens and the earth. He createth what He will. He bestoweth female (offspring) upon whom He will, and bestoweth male (offspring) upon whom He will;
Surah Ash-Shura(42:49)