Well, the Hijri date 23 Dhul Hijjah 1257 corresponds to the Gregorian date Friday, 4 February 1842. This date lies in the twelfth month of the Hijri year 1257 AH, which is Dhu Al-Hijjah of 1257 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1257/12/23 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 4 February 1842 to its equivalent Arabic date.
The following is the conversion of the Arabic date 23 Dhul Hijjah 1257 AH to its equivalent Gregorian date.
فَسَقَىٰ لَهُمَا ثُمَّ تَوَلَّىٰٓ إِلَى ٱلظِّلِّ فَقَالَ رَبِّ إِنِّى لِمَآ أَنزَلْتَ إِلَىَّ مِنْ خَيْرٍۢ فَقِيرٌۭ
So he watered (their flock) for them. Then he turned aside into the shade, and said: My Lord! I am needy of whatever good Thou sendest down for me.
Surah Al-Qasas(28:24)