Well, the Hijri date 12 Rabi Al Thani 1383 corresponds to the Gregorian date Saturday, 31 August 1963. This date lies in the fourth month of the Hijri year 1383 AH, which is Rabi Al-Thani of 1383 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1383/04/12 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 31 August 1963 to its equivalent Arabic date.
The following is the conversion of the Arabic date 12 Rabi Al Thani 1383 AH to its equivalent Gregorian date.
تَنَزَّلُ عَلَىٰ كُلِّ أَفَّاكٍ أَثِيمٍۢ
They descend on every sinful, false one.
Surah Ash-Shu'araa(26:222)
Sahih al-Bukhari
Laws of Inheritance (Al-Faraa'id)
Chapter: Whoever claims to be the son of a person other than his father
Narrated Abu Huraira:
The Prophet (ﷺ) said, "Do not deny your fathers (i.e. claim to be the sons of persons other than your fathers), and whoever denies his father, is charged with disbelief."
Sahih al-Bukhari 6768