Well, the Hijri date 13 Shawwal 1243 corresponds to the Gregorian date Sunday, 27 April 1828. This date lies in the tenth month of the Hijri year 1243 AH, which is Shawwal of 1243 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1243/10/13 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 27 April 1828 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Shawwal 1243 AH to its equivalent Gregorian date.
فَلَمَّا جَآءَتْ قِيلَ أَهَٰكَذَا عَرْشُكِ ۖ قَالَتْ كَأَنَّهُۥ هُوَ ۚ وَأُوتِينَا ٱلْعِلْمَ مِن قَبْلِهَا وَكُنَّا مُسْلِمِينَ
So, when she came, it was said (unto her): Is thy throne like this? She said: (It is) as though it were the very one. And (Solomon said): We were given the knowledge before her and we had surrendered (to Allah).
Surah An-Naml(27:42)