Well, the Hijri date 3 Shaban 1400 corresponds to the Gregorian date Sunday, 15 June 1980. This date lies in the eighth month of the Hijri year 1400 AH, which is Shaban of 1400 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1400/08/03 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 15 June 1980 to its equivalent Arabic date.
The following is the conversion of the Arabic date 3 Shaban 1400 AH to its equivalent Gregorian date.
وَمَا لَكُمْ لَا تُؤْمِنُونَ بِٱللَّهِ ۙ وَٱلرَّسُولُ يَدْعُوكُمْ لِتُؤْمِنُوا۟ بِرَبِّكُمْ وَقَدْ أَخَذَ مِيثَٰقَكُمْ إِن كُنتُم مُّؤْمِنِينَ
What aileth you that ye believe not in Allah, when the messenger calleth you to believe in your Lord, and He hath already made a covenant with you, if ye are believers?
Surah Al-Hadid(57:8)
Sahih al-Bukhari
Dress
Chapter: Al-Burud, Al-Hibar and Ash-Shamla
Narrated `Aisha:
(the wife of the Prophet) When Allah's Messenger (ﷺ) died, he was covered with a Hibra Burd (green square decorated garment).
Sahih al-Bukhari 5814