Well, the Hijri date 15 Rajab 1300 corresponds to the Gregorian date Monday, 21 May 1883. This date lies in the seventh month of the Hijri year 1300 AH, which is Rajab of 1300 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1300/07/15 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 21 May 1883 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Rajab 1300 AH to its equivalent Gregorian date.
وَأَنِيبُوٓا۟ إِلَىٰ رَبِّكُمْ وَأَسْلِمُوا۟ لَهُۥ مِن قَبْلِ أَن يَأْتِيَكُمُ ٱلْعَذَابُ ثُمَّ لَا تُنصَرُونَ
Turn unto your Lord repentant, and surrender unto Him, before there come unto you the doom, when ye cannot be helped.
Surah Az-Zumar(39:54)