Well, the Hijri date 9 Rajab 1521 corresponds to the Gregorian date Monday, 14 October 2097. This date lies in the seventh month of the Hijri year 1521 AH, which is Rajab of 1521 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1521/07/09 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 14 October 2097 to its equivalent Arabic date.
The following is the conversion of the Arabic date 9 Rajab 1521 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)