Well, the Hijri date 27 Jumada Al Oula 1366 corresponds to the Gregorian date Friday, 18 April 1947. This date lies in the fifth month of the Hijri year 1366 AH, which is Jumada 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 1366/05/27 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 18 April 1947 to its equivalent Arabic date.
The following is the conversion of the Arabic date 27 Jumada Al Oula 1366 AH to its equivalent Gregorian date.
ذَٰلِكَ بِمَا قَدَّمَتْ يَدَاكَ وَأَنَّ ٱللَّهَ لَيْسَ بِظَلَّٰمٍۢ لِّلْعَبِيدِ
(And unto him it will be said): This is for that which thy two hands have sent before, and because Allah is no oppressor of His slaves.
Surah Al-Hajj(22:10)
Sahih al-Bukhari
Hajj (Pilgrimage)
Chapter: To kiss the Black Stone
Narrated Az-Zubair bin 'Arabi:
A man asked Ibn `Umar about the touching of the Black Stone. Ibn `Umar said, "I saw Allah's Messenger (ﷺ) touching and kissing it." The questioner said, "But if there were a throng (much rush) round the Ka`ba and the people overpowered me, (what would I do?)" He replied angrily, "Stay in Yemen (as that man was from Yemen). I saw Allah's Messenger (ﷺ) touching and kissing it."
Sahih al-Bukhari 1611