Well, the Hijri date 11 Shawwal 1377 corresponds to the Gregorian date Wednesday, 30 April 1958. This date lies in the tenth month of the Hijri year 1377 AH, which is Shawwal of 1377 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1377/10/11 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 30 April 1958 to its equivalent Arabic date.
The following is the conversion of the Arabic date 11 Shawwal 1377 AH to its equivalent Gregorian date.
وَكَيْفَ أَخَافُ مَآ أَشْرَكْتُمْ وَلَا تَخَافُونَ أَنَّكُمْ أَشْرَكْتُم بِٱللَّهِ مَا لَمْ يُنَزِّلْ بِهِۦ عَلَيْكُمْ سُلْطَٰنًۭا ۚ فَأَىُّ ٱلْفَرِيقَيْنِ أَحَقُّ بِٱلْأَمْنِ ۖ إِن كُنتُمْ تَعْلَمُونَ
How should I fear that which ye set up beside Him, when ye fear not to set up beside Allah that for which He hath revealed unto you no warrant? Which of the two factions hath more right to safety? (Answer me that) if ye have knowledge.
Surah Al-An'aam(6:81)
Sahih al-Bukhari
Times of the Prayers
Chapter: Superiority of the Fajr (early morning) prayer
Narrated Jarir bin `Abdullah:
We were with the Prophet (ﷺ) on a full moon night. He looked at the moon and said, "You will certainly see your Lord as you see this moon, and there will be no trouble in seeing Him. So if you can avoid missing (through sleep, business, etc.) a prayer before the rising of the sun (Fajr) and before its setting (`Asr) you must do so. He (the Prophet (ﷺ) ) then recited the following verse: And celebrate the praises Of Your Lord before The rising of the sun And before (its) setting." (50.39)
Sahih al-Bukhari 573