Well, the Hijri date 21 Shaban 1375 corresponds to the Gregorian date Monday, 2 April 1956. This date lies in the eighth month of the Hijri year 1375 AH, which is Shaban of 1375 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1375/08/21 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 2 April 1956 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Shaban 1375 AH to its equivalent Gregorian date.
وَلَمَّا رَءَا ٱلْمُؤْمِنُونَ ٱلْأَحْزَابَ قَالُوا۟ هَٰذَا مَا وَعَدَنَا ٱللَّهُ وَرَسُولُهُۥ وَصَدَقَ ٱللَّهُ وَرَسُولُهُۥ ۚ وَمَا زَادَهُمْ إِلَّآ إِيمَٰنًۭا وَتَسْلِيمًۭا
And when the true believers saw the clans, they said: This is that which Allah and His messenger promised us. Allah and His messenger are true. It did but confirm them in their faith and resignation.
Surah Al-Ahzaab(33:22)
Sahih al-Bukhari
Times of the Prayers
Chapter: One who forgets a Salat (prayer) should offer it when he remembers it, and should not repeat anything except that particular prayer
Narrated Anas:
The Prophet (ﷺ) said, "If anyone forgets a prayer he should pray that prayer when he remembers it. There is no expiation except to pray the same." Then he recited: "Establish prayer for My (i.e. Allah's) remembrance." (20.14).
Sahih al-Bukhari 597