Well, the Hijri date 17 Dhul Hijjah 1185 corresponds to the Gregorian date Saturday, 21 March 1772. This date lies in the twelfth month of the Hijri year 1185 AH, which is Dhu Al-Hijjah of 1185 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1185/12/17 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 21 March 1772 to its equivalent Arabic date.
The following is the conversion of the Arabic date 17 Dhul Hijjah 1185 AH to its equivalent Gregorian date.
وَإِذْ قَالَتْ أُمَّةٌۭ مِّنْهُمْ لِمَ تَعِظُونَ قَوْمًا ۙ ٱللَّهُ مُهْلِكُهُمْ أَوْ مُعَذِّبُهُمْ عَذَابًۭا شَدِيدًۭا ۖ قَالُوا۟ مَعْذِرَةً إِلَىٰ رَبِّكُمْ وَلَعَلَّهُمْ يَتَّقُونَ
And when a community among them said: Why preach ye to a folk whom Allah is about to destroy or punish with an awful doom, they said: In order to be free from guilt before your Lord, and that haply they may ward off (evil).
Surah Al-A'raaf(7:164)