Well, the Hijri date 9 Jumada Al Oula 1171 corresponds to the Gregorian date Wednesday, 18 January 1758. This date lies in the fifth month of the Hijri year 1171 AH, which is Jumada Al-Awwal of 1171 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1171/05/09 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 18 January 1758 to its equivalent Arabic date.
The following is the conversion of the Arabic date 9 Jumada Al Oula 1171 AH to its equivalent Gregorian date.
وَٱلَّذِينَ ءَامَنُوا۟ وَٱتَّبَعَتْهُمْ ذُرِّيَّتُهُم بِإِيمَٰنٍ أَلْحَقْنَا بِهِمْ ذُرِّيَّتَهُمْ وَمَآ أَلَتْنَٰهُم مِّنْ عَمَلِهِم مِّن شَىْءٍۢ ۚ كُلُّ ٱمْرِئٍۭ بِمَا كَسَبَ رَهِينٌۭ
And they who believe and whose seed follow them in faith, We cause their seed to join them (there), and We deprive them of nought of their (life's) work. Every man is a pledge for that which he hath earned.
Surah At-Tur(52:21)