Well, the Hijri date 23 Ramadan 1320 corresponds to the Gregorian date Tuesday, 23 December 1902. This date lies in the ninth month of the Hijri year 1320 AH, which is Ramadan of 1320 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1320/09/23 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 23 December 1902 to its equivalent Arabic date.
The following is the conversion of the Arabic date 23 Ramadan 1320 AH to its equivalent Gregorian date.
فَلَا تَكُ فِى مِرْيَةٍۢ مِّمَّا يَعْبُدُ هَٰٓؤُلَآءِ ۚ مَا يَعْبُدُونَ إِلَّا كَمَا يَعْبُدُ ءَابَآؤُهُم مِّن قَبْلُ ۚ وَإِنَّا لَمُوَفُّوهُمْ نَصِيبَهُمْ غَيْرَ مَنقُوصٍۢ
So be not thou in doubt concerning that which these (folk) worship. They worship only as their fathers worshipped aforetime. Lo! we shall pay them their whole due unabated.
Surah Hud(11:109)