Well, the Hijri date 1 Dhul Qidah 1611 corresponds to the Gregorian date Sunday, 29 May 2185. This date lies in the eleventh month of the Hijri year 1611 AH, which is Dhu Al-Qidah of 1611 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1611/11/01 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 29 May 2185 to its equivalent Arabic date.
The following is the conversion of the Arabic date 1 Dhul Qidah 1611 AH to its equivalent Gregorian date.
وَأَلْقَىٰ فِى ٱلْأَرْضِ رَوَٰسِىَ أَن تَمِيدَ بِكُمْ وَأَنْهَٰرًۭا وَسُبُلًۭا لَّعَلَّكُمْ تَهْتَدُونَ
And He hath cast into the earth firm hills that it quake not with you, and streams and roads that ye may find a way.
Surah An-Nahl(16:15)