Well, the Hijri date 26 Muharram 1245 corresponds to the Gregorian date Monday, 27 July 1829. This date lies in the first month of the Hijri year 1245 AH, which is Muharram of 1245 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1245/01/26 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 27 July 1829 to its equivalent Arabic date.
The following is the conversion of the Arabic date 26 Muharram 1245 AH to its equivalent Gregorian date.
أَمْ لَمْ يَعْرِفُوا۟ رَسُولَهُمْ فَهُمْ لَهُۥ مُنكِرُونَ
Or know they not their messenger, and so reject him?
Surah Al-Muminoon(23:69)