Well, the Hijri date 21 Dhul Hijjah 1397 corresponds to the Gregorian date Friday, 2 December 1977. This date lies in the twelfth month of the Hijri year 1397 AH, which is Dhu Al-Hijjah of 1397 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1397/12/21 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 2 December 1977 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Dhul Hijjah 1397 AH to its equivalent Gregorian date.
وَهُوَ ٱللَّهُ لَآ إِلَٰهَ إِلَّا هُوَ ۖ لَهُ ٱلْحَمْدُ فِى ٱلْأُولَىٰ وَٱلْءَاخِرَةِ ۖ وَلَهُ ٱلْحُكْمُ وَإِلَيْهِ تُرْجَعُونَ
And He is Allah; there is no Allah save Him. His is all praise in the former and the latter (state), and His is the command, and unto Him ye will be brought back.
Surah Al-Qasas(28:70)