Well, the Hijri date 12 Shaban 1192 corresponds to the Gregorian date Friday, 4 September 1778. This date lies in the eighth month of the Hijri year 1192 AH, which is Shaban of 1192 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1192/08/12 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 4 September 1778 to its equivalent Arabic date.
The following is the conversion of the Arabic date 12 Shaban 1192 AH to its equivalent Gregorian date.
وَمَا كُنتَ بِجَانِبِ ٱلْغَرْبِىِّ إِذْ قَضَيْنَآ إِلَىٰ مُوسَى ٱلْأَمْرَ وَمَا كُنتَ مِنَ ٱلشَّٰهِدِينَ
And thou (Muhammad) wast not on the western side (of the Mount) when We expounded unto Moses the commandment, and thou wast not among those present;
Surah Al-Qasas(28:44)