Well, the Hijri date 21 Dhul Qidah 1231 corresponds to the Gregorian date Saturday, 12 October 1816. This date lies in the eleventh month of the Hijri year 1231 AH, which is Dhu Al-Qidah of 1231 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1231/11/21 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 12 October 1816 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Dhul Qidah 1231 AH to its equivalent Gregorian date.
أَمْ يَقُولُونَ ٱفْتَرَىٰهُ ۖ قُلْ فَأْتُوا۟ بِسُورَةٍۢ مِّثْلِهِۦ وَٱدْعُوا۟ مَنِ ٱسْتَطَعْتُم مِّن دُونِ ٱللَّهِ إِن كُنتُمْ صَٰدِقِينَ
Or say they: He hath invented it? Say: Then bring a surah like unto it, and call (for help) on all ye can besides Allah, if ye are truthful.
Surah Yunus(10:38)
