Well, the Hijri date 13 Muharram 1275 corresponds to the Gregorian date Sunday, 22 August 1858. This date lies in the first month of the Hijri year 1275 AH, which is Muharram of 1275 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1275/01/13 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 22 August 1858 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Muharram 1275 AH to its equivalent Gregorian date.
وَلَا يَحْسَبَنَّ ٱلَّذِينَ كَفَرُوٓا۟ أَنَّمَا نُمْلِى لَهُمْ خَيْرٌۭ لِّأَنفُسِهِمْ ۚ إِنَّمَا نُمْلِى لَهُمْ لِيَزْدَادُوٓا۟ إِثْمًۭا ۚ وَلَهُمْ عَذَابٌۭ مُّهِينٌۭ
And let not those who disbelieve imagine that the rein We give them bodeth good unto their souls. We only give them rein that they may grow in sinfulness. And theirs will be a shameful doom.
Surah Aal-i-Imraan(3:178)