Well, the Hijri date 21 Shaban 1275 corresponds to the Gregorian date Friday, 25 March 1859. This date lies in the eighth month of the Hijri year 1275 AH, which is Shaban of 1275 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1275/08/21 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 25 March 1859 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Shaban 1275 AH to its equivalent Gregorian date.
وَكَيْفَ تَكْفُرُونَ وَأَنتُمْ تُتْلَىٰ عَلَيْكُمْ ءَايَٰتُ ٱللَّهِ وَفِيكُمْ رَسُولُهُۥ ۗ وَمَن يَعْتَصِم بِٱللَّهِ فَقَدْ هُدِىَ إِلَىٰ صِرَٰطٍۢ مُّسْتَقِيمٍۢ
How can ye disbelieve, when it is ye unto whom Allah's revelations are recited, and His messenger is in your midst? He who holdeth fast to Allah, he indeed is guided unto a right path.
Surah Aal-i-Imraan(3:101)