Well, the Hijri date 15 Dhul Qidah 1400 corresponds to the Gregorian date Wednesday, 24 September 1980. This date lies in the eleventh month of the Hijri year 1400 AH, which is Dhu Al-Qidah of 1400 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1400/11/15 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 24 September 1980 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Dhul Qidah 1400 AH to its equivalent Gregorian date.
فَإِن يَصْبِرُوا۟ فَٱلنَّارُ مَثْوًۭى لَّهُمْ ۖ وَإِن يَسْتَعْتِبُوا۟ فَمَا هُم مِّنَ ٱلْمُعْتَبِينَ
And though they are resigned, yet the Fire is still their home; and if they ask for favour, yet they are not of those unto whom favour can be shown.
Surah Fussilat(41:24)