Well, the Hijri date 22 Dhul Hijjah 1200 corresponds to the Gregorian date Sunday, 15 October 1786. This date lies in the twelfth month of the Hijri year 1200 AH, which is Dhu Al-Hijjah of 1200 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1200/12/22 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 15 October 1786 to its equivalent Arabic date.
The following is the conversion of the Arabic date 22 Dhul Hijjah 1200 AH to its equivalent Gregorian date.
فَعَقَرُوا۟ ٱلنَّاقَةَ وَعَتَوْا۟ عَنْ أَمْرِ رَبِّهِمْ وَقَالُوا۟ يَٰصَٰلِحُ ٱئْتِنَا بِمَا تَعِدُنَآ إِن كُنتَ مِنَ ٱلْمُرْسَلِينَ
So they hamstrung the she-camel, and they flouted the commandment of their Lord, and they said: O Salih! Bring upon us that thou threatenest if thou art indeed of those sent (from Allah).
Surah Al-A'raaf(7:77)