Well, the Hijri date 23 Shaban 1377 corresponds to the Gregorian date Thursday, 13 March 1958. This date lies in the eighth month of the Hijri year 1377 AH, which is Shaban of 1377 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1377/08/23 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 13 March 1958 to its equivalent Arabic date.
The following is the conversion of the Arabic date 23 Shaban 1377 AH to its equivalent Gregorian date.
مَن كَفَرَ بِٱللَّهِ مِنۢ بَعْدِ إِيمَٰنِهِۦٓ إِلَّا مَنْ أُكْرِهَ وَقَلْبُهُۥ مُطْمَئِنٌّۢ بِٱلْإِيمَٰنِ وَلَٰكِن مَّن شَرَحَ بِٱلْكُفْرِ صَدْرًۭا فَعَلَيْهِمْ غَضَبٌۭ مِّنَ ٱللَّهِ وَلَهُمْ عَذَابٌ عَظِيمٌۭ
Whoso disbelieveth in Allah after his belief - save him who is forced thereto and whose heart is still content with the Faith - but whoso findeth ease in disbelief: On them is wrath from Allah. Theirs will be an awful doom.
Surah An-Nahl(16:106)