Well, the Hijri date 4 Shaban 1383 corresponds to the Gregorian date Friday, 20 December 1963. This date lies in the eighth month of the Hijri year 1383 AH, which is Shaban of 1383 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1383/08/04 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 20 December 1963 to its equivalent Arabic date.
The following is the conversion of the Arabic date 4 Shaban 1383 AH to its equivalent Gregorian date.
قُلِ ٱللَّهُمَّ مَٰلِكَ ٱلْمُلْكِ تُؤْتِى ٱلْمُلْكَ مَن تَشَآءُ وَتَنزِعُ ٱلْمُلْكَ مِمَّن تَشَآءُ وَتُعِزُّ مَن تَشَآءُ وَتُذِلُّ مَن تَشَآءُ ۖ بِيَدِكَ ٱلْخَيْرُ ۖ إِنَّكَ عَلَىٰ كُلِّ شَىْءٍۢ قَدِيرٌۭ
Say: O Allah! Owner of Sovereignty! Thou givest sovereignty unto whom Thou wilt, and Thou withdrawest sovereignty from whom Thou wilt. Thou exaltest whom Thou wilt, and Thou abasest whom Thou wilt. In Thy hand is the good. Lo! Thou art Able to do all things.
Surah Aal-i-Imraan(3:26)