Well, the Hijri date 5 Ramadan 1521 corresponds to the Gregorian date Sunday, 8 December 2097. This date lies in the ninth month of the Hijri year 1521 AH, which is Ramadan of 1521 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1521/09/05 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 8 December 2097 to its equivalent Arabic date.
The following is the conversion of the Arabic date 5 Ramadan 1521 AH to its equivalent Gregorian date.
وَيَوْمَ يَعَضُّ ٱلظَّالِمُ عَلَىٰ يَدَيْهِ يَقُولُ يَٰلَيْتَنِى ٱتَّخَذْتُ مَعَ ٱلرَّسُولِ سَبِيلًۭا
On the day when the wrong-doer gnaweth his hands, he will say: Ah, would that I had chosen a way together with the messenger (of Allah)!
Surah Al-Furqaan(25:27)