Well, the Hijri date 21 Rabi Al Awwal 1309 corresponds to the Gregorian date Saturday, 24 October 1891. This date lies in the third month of the Hijri year 1309 AH, which is Rabi Al-Awwal of 1309 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1309/03/21 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 24 October 1891 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Rabi Al Awwal 1309 AH to its equivalent Gregorian date.
كَلَّآ إِنَّهُمْ عَن رَّبِّهِمْ يَوْمَئِذٍۢ لَّمَحْجُوبُونَ
Nay, but surely on that day they will be covered from (the mercy of) their Lord.
Surah Al-Mutaffifin(83:15)