Well, the Hijri date 7 Dhul Hijjah 1263 corresponds to the Gregorian date Monday, 15 November 1847. This date lies in the twelfth month of the Hijri year 1263 AH, which is Dhu Al-Hijjah of 1263 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1263/12/07 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 15 November 1847 to its equivalent Arabic date.
The following is the conversion of the Arabic date 7 Dhul Hijjah 1263 AH to its equivalent Gregorian date.
وَيَسْتَعْجِلُونَكَ بِٱلْعَذَابِ ۚ وَلَوْلَآ أَجَلٌۭ مُّسَمًّۭى لَّجَآءَهُمُ ٱلْعَذَابُ وَلَيَأْتِيَنَّهُم بَغْتَةًۭ وَهُمْ لَا يَشْعُرُونَ
They bid thee hasten on the doom (of Allah). And if a term had not been appointed, the doom would assuredly have come unto them (ere now). And verily it will come upon them suddenly when they perceive not.
Surah Al-Ankaboot(29:53)