Well, the Hijri date 20 Safar 1377 corresponds to the Gregorian date Saturday, 14 September 1957. This date lies in the second month of the Hijri year 1377 AH, which is Safar of 1377 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1377/02/20 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 14 September 1957 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Safar 1377 AH to its equivalent Gregorian date.
۞ أَفَلَا يَعْلَمُ إِذَا بُعْثِرَ مَا فِى ٱلْقُبُورِ
Knoweth he not that, when the contents of the graves are poured forth
Surah Al-Aadiyaat(100:9)
Sahih al-Bukhari
Peacemaking
Chapter: To make peace with Al-Mushrikun
Narrated Al-Bara' bin 'Azib (ra):
On the day of Hudaibiya, the Prophet (ﷺ), the Prophet (ﷺ) made a peace treaty with the Al-Mushrikun on three conditions: 1. The Prophet (ﷺ) would return to them any person from Al-Mushrikun (polytheists, idolaters, pagans). 2. Al-Mushrikun pagans would not return any of the Muslims going to them, and 3. The Prophet (ﷺ) and his companions would come to Makkah the following year and would stay there for three days and would enter with their weapons in cases, e.g., swords, arrows, bows, etc. Abu Jandal came hopping, his legs being chained, but the Prophet (ﷺ) returned him to Al-Mushrikun.
Sahih al-Bukhari 2700