Well, the Hijri date 20 Safar 1253 corresponds to the Gregorian date Thursday, 25 May 1837. This date lies in the second month of the Hijri year 1253 AH, which is Safar of 1253 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1253/02/20 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 May 1837 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Safar 1253 AH to its equivalent Gregorian date.
فَٱلْتَقَمَهُ ٱلْحُوتُ وَهُوَ مُلِيمٌۭ
And the fish swallowed him while he was blameworthy;
Surah As-Saaffaat(37:142)