Well, the Hijri date 8 Rabi Al Thani 1615 corresponds to the Gregorian date Monday, 29 September 2188. This date lies in the fourth month of the Hijri year 1615 AH, which is Rabi Al-Thani of 1615 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1615/04/08 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 29 September 2188 to its equivalent Arabic date.
The following is the conversion of the Arabic date 8 Rabi Al Thani 1615 AH to its equivalent Gregorian date.
وَمَنْ أَرَادَ ٱلْءَاخِرَةَ وَسَعَىٰ لَهَا سَعْيَهَا وَهُوَ مُؤْمِنٌۭ فَأُو۟لَٰٓئِكَ كَانَ سَعْيُهُم مَّشْكُورًۭا
And whoso desireth the Hereafter and striveth for it with the effort necessary, being a believer; for such, their effort findeth favour (with their Lord).
Surah Al-Israa(17:19)