Well, the Hijri date 9 Dhul Hijjah 1370 corresponds to the Gregorian date Monday, 10 September 1951. This date lies in the twelfth month of the Hijri year 1370 AH, which is Dhu Al-Hijjah of 1370 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1370/12/09 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 September 1951 to its equivalent Arabic date.
The following is the conversion of the Arabic date 9 Dhul Hijjah 1370 AH to its equivalent Gregorian date.
فَجُمِعَ ٱلسَّحَرَةُ لِمِيقَٰتِ يَوْمٍۢ مَّعْلُومٍۢ
So the wizards were gathered together at a set time on a day appointed.
Surah Ash-Shu'araa(26:38)
Sahih al-Bukhari
Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))
"The Day when (all) mankind will stand before the Lord of the 'Alamīn (mankind, jinn and all that exists)" (V.83:6)
Narrated `Abdullah bin `Umar:
The Prophet (ﷺ) said, "On the Day when all mankind will stand before the Lord of the Worlds, some of them will be enveloped in their sweat up to the middle of their ears."
Sahih al-Bukhari 4938