Well, the Hijri date 21 Shawwal 1185 corresponds to the Gregorian date Sunday, 26 January 1772. This date lies in the tenth month of the Hijri year 1185 AH, which is Shawwal of 1185 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1185/10/21 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 January 1772 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Shawwal 1185 AH to its equivalent Gregorian date.
رَّبَّنَآ إِنَّنَا سَمِعْنَا مُنَادِيًۭا يُنَادِى لِلْإِيمَٰنِ أَنْ ءَامِنُوا۟ بِرَبِّكُمْ فَـَٔامَنَّا ۚ رَبَّنَا فَٱغْفِرْ لَنَا ذُنُوبَنَا وَكَفِّرْ عَنَّا سَيِّـَٔاتِنَا وَتَوَفَّنَا مَعَ ٱلْأَبْرَارِ
Our Lord! Lo! we have heard a crier calling unto Faith: "Believe ye in your Lord!" So we believed. Our Lord! Therefor forgive us our sins, and remit from us our evil deeds, and make us die the death of the righteous.
Surah Aal-i-Imraan(3:193)