Well, the Hijri date 15 Rabi Al Thani 1225 corresponds to the Gregorian date Saturday, 19 May 1810. This date lies in the fourth month of the Hijri year 1225 AH, which is Rabi Al-Thani of 1225 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1225/04/15 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 19 May 1810 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Rabi Al Thani 1225 AH to its equivalent Gregorian date.
سَمَّٰعُونَ لِلْكَذِبِ أَكَّٰلُونَ لِلسُّحْتِ ۚ فَإِن جَآءُوكَ فَٱحْكُم بَيْنَهُمْ أَوْ أَعْرِضْ عَنْهُمْ ۖ وَإِن تُعْرِضْ عَنْهُمْ فَلَن يَضُرُّوكَ شَيْـًۭٔا ۖ وَإِنْ حَكَمْتَ فَٱحْكُم بَيْنَهُم بِٱلْقِسْطِ ۚ إِنَّ ٱللَّهَ يُحِبُّ ٱلْمُقْسِطِينَ
Listeners for the sake of falsehood! Greedy for illicit gain! If then they have recourse unto thee (Muhammad) judge between them or disclaim jurisdiction. If thou disclaimest jurisdiction, then they cannot harm thee at all. But if thou judgest, judge between them with equity. Lo! Allah loveth the equitable.
Surah Al-Maaida(5:42)