Well, the Hijri date 15 Safar 1377 corresponds to the Gregorian date Monday, 9 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 Monday without any doubt. The Arabic date 1377/02/15 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 9 September 1957 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Safar 1377 AH to its equivalent Gregorian date.
وَإِذَا رَأَوْهُمْ قَالُوٓا۟ إِنَّ هَٰٓؤُلَآءِ لَضَآلُّونَ
And when they saw them they said: Lo! these have gone astray.
Surah Al-Mutaffifin(83:32)
Sahih al-Bukhari
Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))
"And We have indeed made the Qur'an easy to understand and remember; then is there any one who will remember (or receive admonition)?" (V.54:17)
Narrated `Abdullah bin Masud:
The Prophet (ﷺ) used to recite: "Fahal-min-Maddakir (then is there any that will receive admonition?")
Sahih al-Bukhari 4870
