Well, the Hijri date 3 Rabi Al Thani 1213 corresponds to the Gregorian date Thursday, 13 September 1798. This date lies in the fourth month of the Hijri year 1213 AH, which is Rabi Al-Thani of 1213 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1213/04/03 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 13 September 1798 to its equivalent Arabic date.
The following is the conversion of the Arabic date 3 Rabi Al Thani 1213 AH to its equivalent Gregorian date.
فَلَمَّا جَآءَتْهُمْ رُسُلُهُم بِٱلْبَيِّنَٰتِ فَرِحُوا۟ بِمَا عِندَهُم مِّنَ ٱلْعِلْمِ وَحَاقَ بِهِم مَّا كَانُوا۟ بِهِۦ يَسْتَهْزِءُونَ
And when their messengers brought them clear proofs (of Allah's Sovereignty) they exulted in the knowledge they (themselves) possessed. And that which they were wont to mock befell them.
Surah Ghafir(40:83)