Well, the Hijri date 28 Dhul Qidah 1230 corresponds to the Gregorian date Tuesday, 31 October 1815. This date lies in the eleventh month of the Hijri year 1230 AH, which is Dhu Al-Qidah of 1230 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1230/11/28 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 31 October 1815 to its equivalent Arabic date.
The following is the conversion of the Arabic date 28 Dhul Qidah 1230 AH to its equivalent Gregorian date.
وَتِلْكَ ٱلْقُرَىٰٓ أَهْلَكْنَٰهُمْ لَمَّا ظَلَمُوا۟ وَجَعَلْنَا لِمَهْلِكِهِم مَّوْعِدًۭا
And (all) those townships! We destroyed them when they did wrong, and We appointed a fixed time for their destruction.
Surah Al-Kahf(18:59)