Well, the Hijri date 26 Rabi Al Awwal 1230 corresponds to the Gregorian date Tuesday, 7 March 1815. This date lies in the third month of the Hijri year 1230 AH, which is Rabi Al-Awwal of 1230 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1230/03/26 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 March 1815 to its equivalent Arabic date.
The following is the conversion of the Arabic date 26 Rabi Al Awwal 1230 AH to its equivalent Gregorian date.
۞ لَيْسُوا۟ سَوَآءًۭ ۗ مِّنْ أَهْلِ ٱلْكِتَٰبِ أُمَّةٌۭ قَآئِمَةٌۭ يَتْلُونَ ءَايَٰتِ ٱللَّهِ ءَانَآءَ ٱلَّيْلِ وَهُمْ يَسْجُدُونَ
They are not all alike. Of the People of the Scripture there is a staunch community who recite the revelations of Allah in the night season, falling prostrate (before Him).
Surah Aal-i-Imraan(3:113)