Well, the Hijri date 20 Shaban 1359 corresponds to the Gregorian date Sunday, 22 September 1940. This date lies in the eighth month of the Hijri year 1359 AH, which is Shaban of 1359 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1359/08/20 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 22 September 1940 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Shaban 1359 AH to its equivalent Gregorian date.
لَقَدْ كَانَ لِسَبَإٍۢ فِى مَسْكَنِهِمْ ءَايَةٌۭ ۖ جَنَّتَانِ عَن يَمِينٍۢ وَشِمَالٍۢ ۖ كُلُوا۟ مِن رِّزْقِ رَبِّكُمْ وَٱشْكُرُوا۟ لَهُۥ ۚ بَلْدَةٌۭ طَيِّبَةٌۭ وَرَبٌّ غَفُورٌۭ
There was indeed a sign for Sheba in their dwelling-place: Two gardens on the right hand and the left (as who should say): Eat of the provision of your Lord and render thanks to Him. A fair land and an indulgent Lord!
Surah Saba(34:15)