Well, the Hijri date 30 Shaban 1376 corresponds to the Gregorian date Sunday, 31 March 1957. This date lies in the eighth month of the Hijri year 1376 AH, which is Shaban of 1376 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1376/08/30 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 1957 to its equivalent Arabic date.
The following is the conversion of the Arabic date 30 Shaban 1376 AH to its equivalent Gregorian date.
سَيَقُولُونَ لِلَّهِ ۚ قُلْ فَأَنَّىٰ تُسْحَرُونَ
They will say: Unto Allah (all that belongeth). Say: How then are ye bewitched?
Surah Al-Muminoon(23:89)
Sahih al-Bukhari
Fasting
Chapter: Iftar (to break the Saum (fast))
Narrated `Abdullah bin Abi `Aufa:
We were traveling with Allah's Messenger (ﷺ) and he was fasting, and when the sun set, he said to (someone), "Get down and mix Sawiq with water for us." He replied, "O Allah's Messenger (ﷺ)! (Will you wait) till it is evening?" The Prophet (ﷺ) again said, "Get down and mix Sawiq with water for us." He replied, "O Allah's Messenger (ﷺ)! It is still daytime." The Prophet (ﷺ) said again, "Get down and mix Sawiq with water for us." So, he got down and carried out that order. The Prophet (ﷺ) then said, "When you see night falling from this side, the fasting person should break his fast," and he beckoned with his finger towards the east.
Sahih al-Bukhari 1956