Well, the Hijri date 28 Rabi Al Awwal 1204 corresponds to the Gregorian date Tuesday, 15 December 1789. This date lies in the third month of the Hijri year 1204 AH, which is Rabi Al-Awwal of 1204 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1204/03/28 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 December 1789 to its equivalent Arabic date.
The following is the conversion of the Arabic date 28 Rabi Al Awwal 1204 AH to its equivalent Gregorian date.
وَءَامِنُوا۟ بِمَآ أَنزَلْتُ مُصَدِّقًۭا لِّمَا مَعَكُمْ وَلَا تَكُونُوٓا۟ أَوَّلَ كَافِرٍۭ بِهِۦ ۖ وَلَا تَشْتَرُوا۟ بِـَٔايَٰتِى ثَمَنًۭا قَلِيلًۭا وَإِيَّٰىَ فَٱتَّقُونِ
And believe in that which I reveal, confirming that which ye possess already (of the Scripture), and be not first to disbelieve therein, and part not with My revelations for a trifling price, and keep your duty unto Me.
Surah Al-Baqara(2:41)