Well, the Hijri date 1 Jumada Al Oula 1231 corresponds to the Gregorian date Friday, 29 March 1816. This date lies in the fifth month of the Hijri year 1231 AH, which is Jumada Al-Awwal of 1231 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1231/05/01 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 29 March 1816 to its equivalent Arabic date.
The following is the conversion of the Arabic date 1 Jumada Al Oula 1231 AH to its equivalent Gregorian date.
وَٱلَّذِينَ إِذَا فَعَلُوا۟ فَٰحِشَةً أَوْ ظَلَمُوٓا۟ أَنفُسَهُمْ ذَكَرُوا۟ ٱللَّهَ فَٱسْتَغْفَرُوا۟ لِذُنُوبِهِمْ وَمَن يَغْفِرُ ٱلذُّنُوبَ إِلَّا ٱللَّهُ وَلَمْ يُصِرُّوا۟ عَلَىٰ مَا فَعَلُوا۟ وَهُمْ يَعْلَمُونَ
And those who, when they do an evil thing or wrong themselves, remember Allah and implore forgiveness for their sins - Who forgiveth sins save Allah only? - and will not knowingly repeat (the wrong) they did.
Surah Aal-i-Imraan(3:135)