Well, the Hijri date 21 Ramadan 1204 corresponds to the Gregorian date Thursday, 3 June 1790. This date lies in the ninth month of the Hijri year 1204 AH, which is Ramadan of 1204 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1204/09/21 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 3 June 1790 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Ramadan 1204 AH to its equivalent Gregorian date.
وَتَرَى ٱلْمَلَٰٓئِكَةَ حَآفِّينَ مِنْ حَوْلِ ٱلْعَرْشِ يُسَبِّحُونَ بِحَمْدِ رَبِّهِمْ ۖ وَقُضِىَ بَيْنَهُم بِٱلْحَقِّ وَقِيلَ ٱلْحَمْدُ لِلَّهِ رَبِّ ٱلْعَٰلَمِينَ
And thou (O Muhammad) seest the angels thronging round the Throne, hymning the praises of their Lord. And they are judged aright. And it is said: Praise be to Allah, the Lord of the Worlds!
Surah Az-Zumar(39:75)