Well, the Hijri date 23 Rabi Al Awwal 1366 corresponds to the Gregorian date Friday, 14 February 1947. This date lies in the third month of the Hijri year 1366 AH, which is Rabi Al-Awwal of 1366 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1366/03/23 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 14 February 1947 to its equivalent Arabic date.
The following is the conversion of the Arabic date 23 Rabi Al Awwal 1366 AH to its equivalent Gregorian date.
ظَهَرَ ٱلْفَسَادُ فِى ٱلْبَرِّ وَٱلْبَحْرِ بِمَا كَسَبَتْ أَيْدِى ٱلنَّاسِ لِيُذِيقَهُم بَعْضَ ٱلَّذِى عَمِلُوا۟ لَعَلَّهُمْ يَرْجِعُونَ
Corruption doth appear on land and sea because of (the evil) which men's hands have done, that He may make them taste a part of that which they have done, in order that they may return.
Surah Ar-Room(30:41)
Sahih al-Bukhari
Fasting
Chapter: Observing Saum (fast) on Tashriq days.
Narrated `Aisha and Ibn `Umar:
Nobody was allowed to fast on the days of Tashriq except those who could not afford the Hadi (Sacrifice).
Sahih al-Bukhari 1997, 1998