Well, the Hijri date 20 Safar 1371 corresponds to the Gregorian date Monday, 19 November 1951. This date lies in the second month of the Hijri year 1371 AH, which is Safar of 1371 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1371/02/20 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 19 November 1951 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Safar 1371 AH to its equivalent Gregorian date.
وَيَقُولُونَ طَاعَةٌۭ فَإِذَا بَرَزُوا۟ مِنْ عِندِكَ بَيَّتَ طَآئِفَةٌۭ مِّنْهُمْ غَيْرَ ٱلَّذِى تَقُولُ ۖ وَٱللَّهُ يَكْتُبُ مَا يُبَيِّتُونَ ۖ فَأَعْرِضْ عَنْهُمْ وَتَوَكَّلْ عَلَى ٱللَّهِ ۚ وَكَفَىٰ بِٱللَّهِ وَكِيلًا
And they say: (It is) obedience; but when they have gone forth from thee a party of them spend the night in planning other than what thou sayest. Allah recordeth what they plan by night. So oppose them and put thy trust in Allah. Allah is sufficient as Trustee.
Surah An-Nisaa(4:81)