Well, the Hijri date 25 Shaban 1233 corresponds to the Gregorian date Monday, 29 June 1818. This date lies in the eighth month of the Hijri year 1233 AH, which is Shaban of 1233 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1233/08/25 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 29 June 1818 to its equivalent Arabic date.
The following is the conversion of the Arabic date 25 Shaban 1233 AH to its equivalent Gregorian date.
وَفِى عَادٍ إِذْ أَرْسَلْنَا عَلَيْهِمُ ٱلرِّيحَ ٱلْعَقِيمَ
And in (the tribe of) A'ad (there is a portent) when we sent the fatal wind against them.
Surah Adh-Dhaariyat(51:41)