Well, the Hijri date 21 Shawwal 1299 corresponds to the Gregorian date Monday, 4 September 1882. This date lies in the tenth month of the Hijri year 1299 AH, which is Shawwal of 1299 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1299/10/21 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 4 September 1882 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Shawwal 1299 AH to its equivalent Gregorian date.
۞ وَإِذِ ٱبْتَلَىٰٓ إِبْرَٰهِۦمَ رَبُّهُۥ بِكَلِمَٰتٍۢ فَأَتَمَّهُنَّ ۖ قَالَ إِنِّى جَاعِلُكَ لِلنَّاسِ إِمَامًۭا ۖ قَالَ وَمِن ذُرِّيَّتِى ۖ قَالَ لَا يَنَالُ عَهْدِى ٱلظَّٰلِمِينَ
And (remember) when his Lord tried Abraham with (His) commands, and he fulfilled them, He said: Lo! I have appointed thee a leader for mankind. (Abraham) said: And of my offspring (will there be leaders)? He said: My covenant includeth not wrong-doers.
Surah Al-Baqara(2:124)