Well, the Hijri date 11 Rajab 1370 corresponds to the Gregorian date Tuesday, 17 April 1951. This date lies in the seventh month of the Hijri year 1370 AH, which is Rajab of 1370 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1370/07/11 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 17 April 1951 to its equivalent Arabic date.
The following is the conversion of the Arabic date 11 Rajab 1370 AH to its equivalent Gregorian date.
فَأُلْقِىَ ٱلسَّحَرَةُ سُجَّدًۭا قَالُوٓا۟ ءَامَنَّا بِرَبِّ هَٰرُونَ وَمُوسَىٰ
Then the wizards were (all) flung down prostrate, crying: We believe in the Lord of Aaron and Moses.
Surah Taa-Haa(20:70)
Sahih al-Bukhari
Fasting
Chapter: Fasting and non-fasting (periods) of the Prophet saws.
Narrated Anas:
Allah's Messenger (ﷺ) used to leave fasting in a certain month till we thought that he would not fast in that month, and he used to fast in another month till we thought he would not stop fasting at all in that month. And if one wanted to see him praying at night, one could see him (in that condition), and if one wanted to see him sleeping at night, one could see him (in that condition) too.
Sahih al-Bukhari 1972