Well, the Hijri date 21 Dhul Qidah 1401 corresponds to the Gregorian date Saturday, 19 September 1981. This date lies in the eleventh month of the Hijri year 1401 AH, which is Dhu Al-Qidah of 1401 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1401/11/21 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 19 September 1981 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Dhul Qidah 1401 AH to its equivalent Gregorian date.
Surah (:)
Sahih al-Bukhari
Merits of the Helpers in Madinah (Ansaar)
Chapter: The death of An-Najashi (the Negus)
Narrated Abu Huraira:
that Allah's Messenger (ﷺ) informed them (i.e. his companions) of the death of Negus, the king of Ethiopia, on the very day on which the latter died, and said, "Ask Allah's Forgiveness for your brother"
Sahih al-Bukhari 3880