Well, the Hijri date 18 Safar 1129 corresponds to the Gregorian date Sunday, 31 January 1717. This date lies in the second month of the Hijri year 1129 AH, which is Safar of 1129 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1129/02/18 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 31 January 1717 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Safar 1129 AH to its equivalent Gregorian date.
وَإِذَا بَدَّلْنَآ ءَايَةًۭ مَّكَانَ ءَايَةٍۢ ۙ وَٱللَّهُ أَعْلَمُ بِمَا يُنَزِّلُ قَالُوٓا۟ إِنَّمَآ أَنتَ مُفْتَرٍۭ ۚ بَلْ أَكْثَرُهُمْ لَا يَعْلَمُونَ
And when We put a revelation in place of (another) revelation, - and Allah knoweth best what He revealeth - they say: Lo! thou art but inventing. Most of them know not.
Surah An-Nahl(16:101)
