Well, the Hijri date 21 Rabi Al Thani 1493 corresponds to the Gregorian date Saturday, 31 May 2070. This date lies in the fourth month of the Hijri year 1493 AH, which is Rabi Al-Thani of 1493 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1493/04/21 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 31 May 2070 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Rabi Al Thani 1493 AH to its equivalent Gregorian date.
أَوَلَمْ يَرَوْا۟ أَنَّا نَأْتِى ٱلْأَرْضَ نَنقُصُهَا مِنْ أَطْرَافِهَا ۚ وَٱللَّهُ يَحْكُمُ لَا مُعَقِّبَ لِحُكْمِهِۦ ۚ وَهُوَ سَرِيعُ ٱلْحِسَابِ
See they not how we aim to the land, reducing it of its outlying parts? (When) Allah doometh there is none that can postpone His doom, and He is swift at reckoning.
Surah Ar-Ra'd(13:41)
Sahih al-Bukhari
Sales in which a Price is paid for Goods to be Delivered Later (As-Salam)
Chapter: As-Salam for a known specified weight
Narrated Ibn `Abbas:
The Prophet (ﷺ) came to Medina and the people used to pay in advance the price of dates to be delivered within two or three years. He said (to them), "Whoever pays in advance the price of a thing to be delivered later should pay it for a specified measure at specified weight for a specified period."
Sahih al-Bukhari 2240