Well, the Hijri date 22 Dhul Hijjah 1257 corresponds to the Gregorian date Thursday, 3 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 Thursday without any doubt. The Arabic date 1257/12/22 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 3 February 1842 to its equivalent Arabic date.
The following is the conversion of the Arabic date 22 Dhul Hijjah 1257 AH to its equivalent Gregorian date.
ثُمَّ بَدَّلْنَا مَكَانَ ٱلسَّيِّئَةِ ٱلْحَسَنَةَ حَتَّىٰ عَفَوا۟ وَّقَالُوا۟ قَدْ مَسَّ ءَابَآءَنَا ٱلضَّرَّآءُ وَٱلسَّرَّآءُ فَأَخَذْنَٰهُم بَغْتَةًۭ وَهُمْ لَا يَشْعُرُونَ
Then changed We the evil plight for good till they grew affluent and said: Tribulation and distress did touch our fathers. Then We seized them unawares, when they perceived not.
Surah Al-A'raaf(7:95)