Well, the Hijri date 13 Muharram 1213 corresponds to the Gregorian date Tuesday, 26 June 1798. This date lies in the first month of the Hijri year 1213 AH, which is Muharram of 1213 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1213/01/13 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 26 June 1798 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Muharram 1213 AH to its equivalent Gregorian date.
بَلْ بَدَا لَهُم مَّا كَانُوا۟ يُخْفُونَ مِن قَبْلُ ۖ وَلَوْ رُدُّوا۟ لَعَادُوا۟ لِمَا نُهُوا۟ عَنْهُ وَإِنَّهُمْ لَكَٰذِبُونَ
Nay, but that hath become clear unto them which before they used to hide. And if they were sent back they would return unto that which they are forbidden. Lo! they are liars.
Surah Al-An'aam(6:28)