Well, the Hijri date 5 Dhul Qidah 1231 corresponds to the Gregorian date Thursday, 26 September 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 Thursday without any doubt. The Arabic date 1231/11/05 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 September 1816 to its equivalent Arabic date.
The following is the conversion of the Arabic date 5 Dhul Qidah 1231 AH to its equivalent Gregorian date.
وَلَمَّا جَآءَ عِيسَىٰ بِٱلْبَيِّنَٰتِ قَالَ قَدْ جِئْتُكُم بِٱلْحِكْمَةِ وَلِأُبَيِّنَ لَكُم بَعْضَ ٱلَّذِى تَخْتَلِفُونَ فِيهِ ۖ فَٱتَّقُوا۟ ٱللَّهَ وَأَطِيعُونِ
When Jesus came with clear proofs (of Allah's Sovereignty), he said: I have come unto you with wisdom, and to make plain some of that concerning which ye differ. So keep your duty to Allah, and obey me.
Surah Az-Zukhruf(43:63)