Well, the Hijri date 21 Jumada Al Oula 1375 corresponds to the Gregorian date Wednesday, 4 January 1956. This date lies in the fifth month of the Hijri year 1375 AH, which is Jumada Al-Awwal of 1375 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1375/05/21 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 4 January 1956 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Jumada Al Oula 1375 AH to its equivalent Gregorian date.
فَسَجَدَ ٱلْمَلَٰٓئِكَةُ كُلُّهُمْ أَجْمَعُونَ
So the angels fell prostrate, all of them together
Surah Al-Hijr(15:30)
Sahih al-Bukhari
Friday Prayer
Chapter: When the Imam is delivering the Khutba, a light two Rak'a Salat (prayer) (Tahayyat-ul Masjid)
Narrated Jabir:
A man entered the Mosque while the Prophet (ﷺ) was delivering the Khutba. The Prophet (ﷺ) said to him, "Have you prayed?" The man replied in the negative. The Prophet (ﷺ) said, "Pray two rak`at."
Sahih al-Bukhari 931