Well, the Hijri date 7 Rabi Al Thani 1333 corresponds to the Gregorian date Sunday, 21 February 1915. This date lies in the fourth month of the Hijri year 1333 AH, which is Rabi Al-Thani of 1333 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1333/04/07 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 February 1915 to its equivalent Arabic date.
The following is the conversion of the Arabic date 7 Rabi Al Thani 1333 AH to its equivalent Gregorian date.
ٱنظُرْ كَيْفَ كَذَبُوا۟ عَلَىٰٓ أَنفُسِهِمْ ۚ وَضَلَّ عَنْهُم مَّا كَانُوا۟ يَفْتَرُونَ
See how they lie against themselves, and (how) the thing which they devised hath failed them!
Surah Al-An'aam(6:24)