Well, the Hijri date 11 Ramadan 1377 corresponds to the Gregorian date Monday, 31 March 1958. This date lies in the ninth month of the Hijri year 1377 AH, which is Ramadan of 1377 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1377/09/11 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 31 March 1958 to its equivalent Arabic date.
The following is the conversion of the Arabic date 11 Ramadan 1377 AH to its equivalent Gregorian date.
إِذْ يُغَشِّيكُمُ ٱلنُّعَاسَ أَمَنَةًۭ مِّنْهُ وَيُنَزِّلُ عَلَيْكُم مِّنَ ٱلسَّمَآءِ مَآءًۭ لِّيُطَهِّرَكُم بِهِۦ وَيُذْهِبَ عَنكُمْ رِجْزَ ٱلشَّيْطَٰنِ وَلِيَرْبِطَ عَلَىٰ قُلُوبِكُمْ وَيُثَبِّتَ بِهِ ٱلْأَقْدَامَ
When He made the slumber fall upon you as a reassurance from him and sent down water from the sky upon you, that thereby He might purify you, and remove from you the fear of Satan, and make strong your hearts and firm (your) feet thereby.
Surah Al-Anfaal(8:11)
Sahih al-Bukhari
Funerals (Al-Janaa'iz)
Chapter: If Al-Mushrik says, "La ilaha illallah" at the time of his death
Narrated Sa`id bin Al-Musaiyab from his father:
When the time of the death of Abu Talib approached, Allah's Messenger (ﷺ) went to him and found Abu Jahl bin Hisham and `Abdullah bin Abi Umaiya bin Al-Mughira by his side. Allah's Messenger (ﷺ) said to Abu Talib, "O uncle! Say: None has the right to be worshipped but Allah, a sentence with which I shall be a witness (i.e. argue) for you before Allah. Abu Jahl and `Abdullah bin Abi Umaiya said, "O Abu Talib! Are you going to denounce the religion of `Abdul Muttalib?" Allah's Messenger (ﷺ) kept on inviting Abu Talib to say it (i.e. 'None has the right to be worshipped but Allah') while they (Abu Jahl and `Abdullah) kept on repeating their statement till Abu Talib said as his last statement that he was on the religion of `Abdul Muttalib and refused to say, 'None has the right to be worshipped but Allah.' (Then Allah's Messenger (ﷺ) said, "I will keep on asking Allah's forgiveness for you unless I am forbidden (by Allah) to do so." So Allah revealed (the verse) concerning him (i.e. It is not fitting for the Prophet (ﷺ) and those who believe that they should invoke (Allah) for forgiveness for pagans even though they be of kin, after it has become clear to them that they are companions of the fire (9.113).
Sahih al-Bukhari 1360