Well, the Hijri date 24 Muharram 1231 corresponds to the Gregorian date Monday, 25 December 1815. This date lies in the first month of the Hijri year 1231 AH, which is Muharram of 1231 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1231/01/24 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 December 1815 to its equivalent Arabic date.
The following is the conversion of the Arabic date 24 Muharram 1231 AH to its equivalent Gregorian date.
فَكَيْفَ إِذَآ أَصَٰبَتْهُم مُّصِيبَةٌۢ بِمَا قَدَّمَتْ أَيْدِيهِمْ ثُمَّ جَآءُوكَ يَحْلِفُونَ بِٱللَّهِ إِنْ أَرَدْنَآ إِلَّآ إِحْسَٰنًۭا وَتَوْفِيقًا
How would it be if a misfortune smote them because of that which their own hands have sent before (them)? Then would they come unto thee, swearing by Allah that they were seeking naught but harmony and kindness.
Surah An-Nisaa(4:62)