Well, the Hijri date 26 Jumada Al Akhira 1186 corresponds to the Gregorian date Thursday, 24 September 1772. This date lies in the sixth month of the Hijri year 1186 AH, which is Jumada Al-Thani of 1186 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1186/06/26 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 24 September 1772 to its equivalent Arabic date.
The following is the conversion of the Arabic date 26 Jumada Al Akhira 1186 AH to its equivalent Gregorian date.
فَرَدَدْنَٰهُ إِلَىٰٓ أُمِّهِۦ كَىْ تَقَرَّ عَيْنُهَا وَلَا تَحْزَنَ وَلِتَعْلَمَ أَنَّ وَعْدَ ٱللَّهِ حَقٌّۭ وَلَٰكِنَّ أَكْثَرَهُمْ لَا يَعْلَمُونَ
So We restored him to his mother that she might be comforted and not grieve, and that she might know that the promise of Allah is true. But most of them know not.
Surah Al-Qasas(28:13)