Well, the Hijri date 21 Rabi Al Thani 1491 corresponds to the Gregorian date Thursday, 21 June 2068. This date lies in the fourth month of the Hijri year 1491 AH, which is Rabi Al-Thani of 1491 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1491/04/21 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 21 June 2068 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Rabi Al Thani 1491 AH to its equivalent Gregorian date.
أَيْنَمَا تَكُونُوا۟ يُدْرِككُّمُ ٱلْمَوْتُ وَلَوْ كُنتُمْ فِى بُرُوجٍۢ مُّشَيَّدَةٍۢ ۗ وَإِن تُصِبْهُمْ حَسَنَةٌۭ يَقُولُوا۟ هَٰذِهِۦ مِنْ عِندِ ٱللَّهِ ۖ وَإِن تُصِبْهُمْ سَيِّئَةٌۭ يَقُولُوا۟ هَٰذِهِۦ مِنْ عِندِكَ ۚ قُلْ كُلٌّۭ مِّنْ عِندِ ٱللَّهِ ۖ فَمَالِ هَٰٓؤُلَآءِ ٱلْقَوْمِ لَا يَكَادُونَ يَفْقَهُونَ حَدِيثًۭا
Wheresoever ye may be, death will overtake you, even though ye were in lofty towers. Yet if a happy thing befalleth them they say: This is from Allah; and if an evil thing befalleth them they say: This is of thy doing (O Muhammad). Say (unto them): All is from Allah. What is amiss with these people that they come not nigh to understand a happening?
Surah An-Nisaa(4:78)