Well, the Hijri date 18 Muharram 1204 corresponds to the Gregorian date Wednesday, 7 October 1789. This date lies in the first month of the Hijri year 1204 AH, which is Muharram of 1204 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1204/01/18 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 7 October 1789 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Muharram 1204 AH to its equivalent Gregorian date.
وَإِذَا قِيلَ لَهُمُ ٱتَّبِعُوا۟ مَآ أَنزَلَ ٱللَّهُ قَالُوا۟ بَلْ نَتَّبِعُ مَا وَجَدْنَا عَلَيْهِ ءَابَآءَنَآ ۚ أَوَلَوْ كَانَ ٱلشَّيْطَٰنُ يَدْعُوهُمْ إِلَىٰ عَذَابِ ٱلسَّعِيرِ
And if it be said unto them: Follow that which Allah hath revealed, they say: Nay, but we follow that wherein we found our fathers. What! Even though the devil were inviting them unto the doom of flame?
Surah Luqman(31:21)