Well, the Hijri date 18 Safar 1615 corresponds to the Gregorian date Monday, 11 August 2188. This date lies in the second month of the Hijri year 1615 AH, which is Safar of 1615 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1615/02/18 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 11 August 2188 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Safar 1615 AH to its equivalent Gregorian date.
سُبْحَٰنَ رَبِّ ٱلسَّمَٰوَٰتِ وَٱلْأَرْضِ رَبِّ ٱلْعَرْشِ عَمَّا يَصِفُونَ
Glorified be the Lord of the heavens and the earth, the Lord of the Throne, from that which they ascribe (unto Him)!
Surah Az-Zukhruf(43:82)