Well, the Hijri date 15 Rajab 1143 corresponds to the Gregorian date Tuesday, 23 January 1731. This date lies in the seventh month of the Hijri year 1143 AH, which is Rajab of 1143 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1143/07/15 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 23 January 1731 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Rajab 1143 AH to its equivalent Gregorian date.
لَّهُۥ مَقَالِيدُ ٱلسَّمَٰوَٰتِ وَٱلْأَرْضِ ۗ وَٱلَّذِينَ كَفَرُوا۟ بِـَٔايَٰتِ ٱللَّهِ أُو۟لَٰٓئِكَ هُمُ ٱلْخَٰسِرُونَ
His are the keys of the heavens and the earth, and they who disbelieve the revelations of Allah - such are they who are the losers.
Surah Az-Zumar(39:63)