Well, the Hijri date 21 Ramadan 1377 corresponds to the Gregorian date Thursday, 10 April 1958. This date lies in the ninth month of the Hijri year 1377 AH, which is Ramadan of 1377 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1377/09/21 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 10 April 1958 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Ramadan 1377 AH to its equivalent Gregorian date.
ٱلَّذِينَ يَتَّخِذُونَ ٱلْكَٰفِرِينَ أَوْلِيَآءَ مِن دُونِ ٱلْمُؤْمِنِينَ ۚ أَيَبْتَغُونَ عِندَهُمُ ٱلْعِزَّةَ فَإِنَّ ٱلْعِزَّةَ لِلَّهِ جَمِيعًۭا
Those who chose disbelievers for their friends instead of believers! Do they look for power at their hands? Lo! all power appertaineth to Allah.
Surah An-Nisaa(4:139)
Sahih al-Bukhari
Virtues and Merits of the Prophet (pbuh) and his Companions
Chapter: Virtues of Quraish
Narrated Abi Mas`ud:
The Prophet (ﷺ) said, "From this side from the east, afflictions will appear. Rudeness and lack of mercy are characteristics of the rural bedouins who are busy with their camels and cows (and pay no attention to religion). Such are the tribes of Rabi`a and Mudar."
Sahih al-Bukhari 3498