Well, the Hijri date 13 Jumada Al Akhira 1521 corresponds to the Gregorian date Thursday, 19 September 2097. This date lies in the sixth month of the Hijri year 1521 AH, which is Jumada Al-Thani of 1521 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1521/06/13 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 19 September 2097 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Jumada Al Akhira 1521 AH to its equivalent Gregorian date.
وَكَذَّبَ بِهِۦ قَوْمُكَ وَهُوَ ٱلْحَقُّ ۚ قُل لَّسْتُ عَلَيْكُم بِوَكِيلٍۢ
Thy people (O Muhammad) have denied it, though it is the Truth. Say: I am not put in charge of you.
Surah Al-An'aam(6:66)