Well, the Hijri date 25 Rajab 1377 corresponds to the Gregorian date Thursday, 13 February 1958. This date lies in the seventh month of the Hijri year 1377 AH, which is Rajab of 1377 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1377/07/25 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 13 February 1958 to its equivalent Arabic date.
The following is the conversion of the Arabic date 25 Rajab 1377 AH to its equivalent Gregorian date.
يَٰبَنِىٓ إِسْرَٰٓءِيلَ ٱذْكُرُوا۟ نِعْمَتِىَ ٱلَّتِىٓ أَنْعَمْتُ عَلَيْكُمْ وَأَوْفُوا۟ بِعَهْدِىٓ أُوفِ بِعَهْدِكُمْ وَإِيَّٰىَ فَٱرْهَبُونِ
O Children of Israel! Remember My favour wherewith I favoured you, and fulfil your (part of the) covenant, I shall fulfil My (part of the) covenant, and fear Me.
Surah Al-Baqara(2:40)
Sahih al-Bukhari
Fasting
Chapter: The Saum (fasting) of Da'wud (David) alayhis salam.
Narrated `Abdullah bin `Amr:
Allah's Messenger (ﷺ) was informed about my fasts, and he came to me and I spread for him a leather cushion stuffed with palm fires, but he sat on the ground and the cushion remained between me and him, and then he said, "Isn't it sufficient for you to fast three days a month?" I replied, "O Allah's Apostle! (I can fast more)." He said, "Five?" I replied, "O Allah's Messenger (ﷺ)! (I can fast more)." He said, "Seven?" I replied, "O Allah's Messenger (ﷺ)! (I can fast more)." He said, "Nine (days per month)?" I replied, "O Allah's Messenger (ﷺ)! (I can fast more)" He said, "Eleven (days per month)?" And then the Prophet said, "There is no fast superior to that of the Prophet (ﷺ) David it was for half of the year. So, fast on alternate days."
Sahih al-Bukhari 1980