Well, the Hijri date 18 Dhul Hijjah 1193 corresponds to the Gregorian date Sunday, 26 December 1779. This date lies in the twelfth month of the Hijri year 1193 AH, which is Dhu Al-Hijjah of 1193 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1193/12/18 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 December 1779 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Dhul Hijjah 1193 AH to its equivalent Gregorian date.
وَقَالَت طَّآئِفَةٌۭ مِّنْ أَهْلِ ٱلْكِتَٰبِ ءَامِنُوا۟ بِٱلَّذِىٓ أُنزِلَ عَلَى ٱلَّذِينَ ءَامَنُوا۟ وَجْهَ ٱلنَّهَارِ وَٱكْفُرُوٓا۟ ءَاخِرَهُۥ لَعَلَّهُمْ يَرْجِعُونَ
And a party of the People of the Scripture say: Believe in that which hath been revealed unto those who believe at the opening of the day, and disbelieve at the end thereof, in order that they may return;
Surah Aal-i-Imraan(3:72)