Well, the Hijri date 13 Safar 1171 corresponds to the Gregorian date Wednesday, 26 October 1757. This date lies in the second month of the Hijri year 1171 AH, which is Safar of 1171 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1171/02/13 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 26 October 1757 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Safar 1171 AH to its equivalent Gregorian date.
فَإِن زَلَلْتُم مِّنۢ بَعْدِ مَا جَآءَتْكُمُ ٱلْبَيِّنَٰتُ فَٱعْلَمُوٓا۟ أَنَّ ٱللَّهَ عَزِيزٌ حَكِيمٌ
And if ye slide back after the clear proofs have come unto you, then know that Allah is Mighty, Wise.
Surah Al-Baqara(2:209)