Well, the Hijri date 19 Rabi Al Thani 1366 corresponds to the Gregorian date Wednesday, 12 March 1947. This date lies in the fourth month of the Hijri year 1366 AH, which is Rabi Al-Thani of 1366 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1366/04/19 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 12 March 1947 to its equivalent Arabic date.
The following is the conversion of the Arabic date 19 Rabi Al Thani 1366 AH to its equivalent Gregorian date.
فَلَمَّا قَضَيْنَا عَلَيْهِ ٱلْمَوْتَ مَا دَلَّهُمْ عَلَىٰ مَوْتِهِۦٓ إِلَّا دَآبَّةُ ٱلْأَرْضِ تَأْكُلُ مِنسَأَتَهُۥ ۖ فَلَمَّا خَرَّ تَبَيَّنَتِ ٱلْجِنُّ أَن لَّوْ كَانُوا۟ يَعْلَمُونَ ٱلْغَيْبَ مَا لَبِثُوا۟ فِى ٱلْعَذَابِ ٱلْمُهِينِ
And when We decreed death for him, nothing showed his death to them save a creeping creature of the earth which gnawed away his staff. And when he fell the jinn saw clearly how, if they had known the Unseen, they would not have continued in despised toil.
Surah Saba(34:14)