Well, the Hijri date 21 Shawwal 1374 corresponds to the Gregorian date Saturday, 11 June 1955. This date lies in the tenth month of the Hijri year 1374 AH, which is Shawwal of 1374 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1374/10/21 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 11 June 1955 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Shawwal 1374 AH to its equivalent Gregorian date.
وَهَٰذَا كِتَٰبٌ أَنزَلْنَٰهُ مُبَارَكٌۭ مُّصَدِّقُ ٱلَّذِى بَيْنَ يَدَيْهِ وَلِتُنذِرَ أُمَّ ٱلْقُرَىٰ وَمَنْ حَوْلَهَا ۚ وَٱلَّذِينَ يُؤْمِنُونَ بِٱلْءَاخِرَةِ يُؤْمِنُونَ بِهِۦ ۖ وَهُمْ عَلَىٰ صَلَاتِهِمْ يُحَافِظُونَ
And this is a blessed Scripture which We have revealed, confirming that which (was revealed) before it, that thou mayst warn the Mother of Villages and those around her. Those who believe in the Hereafter believe herein, and they are careful of their worship.
Surah Al-An'aam(6:92)
Sahih al-Bukhari
To make the Heart Tender (Ar-Riqaq)
Chapter: Regarding Al-Haud
Narrated Ibn Al-Musaiyab:
The companions of the Prophet (ﷺ) said, "Some men from my companions will come to my Lake-Fount and they will be driven away from it, and I will say, 'O Lord, my companions!' It will be said, 'You have no knowledge of what they innovated after you left: they turned apostate as renegades (reverted from Islam).
Sahih al-Bukhari 6586