Well, the Hijri date 21 Ramadan 1370 corresponds to the Gregorian date Monday, 25 June 1951. This date lies in the ninth month of the Hijri year 1370 AH, which is Ramadan of 1370 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1370/09/21 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 25 June 1951 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Ramadan 1370 AH to its equivalent Gregorian date.
وَلَقَدْ ءَاتَيْنَا مُوسَىٰ وَهَٰرُونَ ٱلْفُرْقَانَ وَضِيَآءًۭ وَذِكْرًۭا لِّلْمُتَّقِينَ
And We verily gave Moses and Aaron the Criterion (of right and wrong) and a light and a Reminder for those who keep from evil,
Surah Al-Anbiyaa(21:48)
Sahih al-Bukhari
Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
Chapter: Ghazwa of Khaibar
Narrated Al-Bara and `Abdullah bin Abl `Aufa:
That when they were in the company of the Prophet, they got some donkeys which they (slaughtered and) cooked. Then the announcer of the Prophet (ﷺ) said, "Turn the cooking pots upside down (i.e. throw out the meat).
Sahih al-Bukhari 4221, 4222