Well, the Hijri date 11 Shaban 1404 corresponds to the Gregorian date Saturday, 12 May 1984. This date lies in the eighth month of the Hijri year 1404 AH, which is Shaban of 1404 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1404/08/11 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 12 May 1984 to its equivalent Arabic date.
The following is the conversion of the Arabic date 11 Shaban 1404 AH to its equivalent Gregorian date.
ٱلَّذِينَ يُجَٰدِلُونَ فِىٓ ءَايَٰتِ ٱللَّهِ بِغَيْرِ سُلْطَٰنٍ أَتَىٰهُمْ ۖ كَبُرَ مَقْتًا عِندَ ٱللَّهِ وَعِندَ ٱلَّذِينَ ءَامَنُوا۟ ۚ كَذَٰلِكَ يَطْبَعُ ٱللَّهُ عَلَىٰ كُلِّ قَلْبِ مُتَكَبِّرٍۢ جَبَّارٍۢ
Those who wrangle concerning the revelations of Allah without any warrant that hath come unto them, it is greatly hateful in the sight of Allah and in the sight of those who believe. Thus doth Allah print on every arrogant, disdainful heart.
Surah Ghafir(40:35)
Sahih al-Bukhari
Virtues and Merits of the Prophet (pbuh) and his Companions
Chapter: The miracle of the splitting of the moon
Narrated Ibn `Abbas:
The moon was split into two parts during the lifetime of the Prophet.
Sahih al-Bukhari 3638