Well, the Hijri date 21 Rabi Al Thani 1360 corresponds to the Gregorian date Saturday, 17 May 1941. This date lies in the fourth month of the Hijri year 1360 AH, which is Rabi Al-Thani of 1360 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1360/04/21 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 17 May 1941 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Rabi Al Thani 1360 AH to its equivalent Gregorian date.
وَأَنْ أَقِيمُوا۟ ٱلصَّلَوٰةَ وَٱتَّقُوهُ ۚ وَهُوَ ٱلَّذِىٓ إِلَيْهِ تُحْشَرُونَ
And to establish worship and be dutiful to Him, and He it is unto Whom ye will be gathered.
Surah Al-An'aam(6:72)