Well, the Hijri date 15 Rabi Al Thani 1377 corresponds to the Gregorian date Thursday, 7 November 1957. This date lies in the fourth month of the Hijri year 1377 AH, which is Rabi Al-Thani of 1377 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1377/04/15 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 7 November 1957 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Rabi Al Thani 1377 AH to its equivalent Gregorian date.
فَأَمَّا مَن تَابَ وَءَامَنَ وَعَمِلَ صَٰلِحًۭا فَعَسَىٰٓ أَن يَكُونَ مِنَ ٱلْمُفْلِحِينَ
But as for him who shall repent and believe and do right, he haply may be one of the successful.
Surah Al-Qasas(28:67)
Sahih al-Bukhari
Invocations
Chapter: The saying of 'Amin'
Narrated Abu Huraira:
The Prophet (ﷺ) said, "When the Imam says 'Amin', then you should all say 'Amin', for the angels say 'Amin' at that time, and he whose 'Amin' coincides with the 'Amin' of the angels, all his past sins will be forgiven."
Sahih al-Bukhari 6402