Well, the Hijri date 15 Rajab 1181 corresponds to the Gregorian date Sunday, 6 December 1767. This date lies in the seventh month of the Hijri year 1181 AH, which is Rajab of 1181 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1181/07/15 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 6 December 1767 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Rajab 1181 AH to its equivalent Gregorian date.
وَأَقِمِ ٱلصَّلَوٰةَ طَرَفَىِ ٱلنَّهَارِ وَزُلَفًۭا مِّنَ ٱلَّيْلِ ۚ إِنَّ ٱلْحَسَنَٰتِ يُذْهِبْنَ ٱلسَّيِّـَٔاتِ ۚ ذَٰلِكَ ذِكْرَىٰ لِلذَّٰكِرِينَ
Establish worship at the two ends of the day and in some watches of the night. Lo! good deeds annul ill-deeds. This is reminder for the mindful.
Surah Hud(11:114)