Well, the Hijri date 21 Muharram 1225 corresponds to the Gregorian date Sunday, 25 February 1810. This date lies in the first month of the Hijri year 1225 AH, which is Muharram of 1225 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1225/01/21 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 February 1810 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Muharram 1225 AH to its equivalent Gregorian date.
يَوْمَ يَغْشَىٰهُمُ ٱلْعَذَابُ مِن فَوْقِهِمْ وَمِن تَحْتِ أَرْجُلِهِمْ وَيَقُولُ ذُوقُوا۟ مَا كُنتُمْ تَعْمَلُونَ
On the day when the doom will overwhelm them from above them and from underneath their feet, and He will say: Taste what ye used to do!
Surah Al-Ankaboot(29:55)