Well, the Hijri date 9 Dhul Qidah 1213 corresponds to the Gregorian date Saturday, 13 April 1799. This date lies in the eleventh month of the Hijri year 1213 AH, which is Dhu Al-Qidah of 1213 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1213/11/09 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 13 April 1799 to its equivalent Arabic date.
The following is the conversion of the Arabic date 9 Dhul Qidah 1213 AH to its equivalent Gregorian date.
فَذُوقُوا۟ بِمَا نَسِيتُمْ لِقَآءَ يَوْمِكُمْ هَٰذَآ إِنَّا نَسِينَٰكُمْ ۖ وَذُوقُوا۟ عَذَابَ ٱلْخُلْدِ بِمَا كُنتُمْ تَعْمَلُونَ
So taste (the evil of your deeds). Forasmuch as ye forgot the meeting of this your day, lo! We forget you. Taste the doom of immortality because of what ye used to do.
Surah As-Sajda(32:14)