Well, the Hijri date 13 Ramadan 1615 corresponds to the Gregorian date Saturday, 28 February 2189. This date lies in the ninth month of the Hijri year 1615 AH, which is Ramadan of 1615 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1615/09/13 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 28 February 2189 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Ramadan 1615 AH to its equivalent Gregorian date.
وَٱلسَّٰبِقُونَ ٱلْأَوَّلُونَ مِنَ ٱلْمُهَٰجِرِينَ وَٱلْأَنصَارِ وَٱلَّذِينَ ٱتَّبَعُوهُم بِإِحْسَٰنٍۢ رَّضِىَ ٱللَّهُ عَنْهُمْ وَرَضُوا۟ عَنْهُ وَأَعَدَّ لَهُمْ جَنَّٰتٍۢ تَجْرِى تَحْتَهَا ٱلْأَنْهَٰرُ خَٰلِدِينَ فِيهَآ أَبَدًۭا ۚ ذَٰلِكَ ٱلْفَوْزُ ٱلْعَظِيمُ
And the first to lead the way, of the Muhajirin and the Ansar, and those who followed them in goodness - Allah is well pleased with them and they are well pleased with Him, and He hath made ready for them Gardens underneath which rivers flow, wherein they will abide for ever. That is the supreme triumph.
Surah At-Tawba(9:100)