Well, the Hijri date 18 Dhul Qidah 1471 corresponds to the Gregorian date Tuesday, 17 August 2049. This date lies in the eleventh month of the Hijri year 1471 AH, which is Dhu Al-Qidah of 1471 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1471/11/18 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 17 August 2049 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Dhul Qidah 1471 AH to its equivalent Gregorian date.
وَإِن تُكَذِّبُوا۟ فَقَدْ كَذَّبَ أُمَمٌۭ مِّن قَبْلِكُمْ ۖ وَمَا عَلَى ٱلرَّسُولِ إِلَّا ٱلْبَلَٰغُ ٱلْمُبِينُ
But if ye deny, then nations have denied before you. The messenger is only to convey (the message) plainly.
Surah Al-Ankaboot(29:18)