Well, the Hijri date 13 Ramadan 1605 corresponds to the Gregorian date Thursday, 17 June 2179. This date lies in the ninth month of the Hijri year 1605 AH, which is Ramadan of 1605 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1605/09/13 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 June 2179 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Ramadan 1605 AH to its equivalent Gregorian date.
وَعَادًۭا وَثَمُودَا۟ وَقَد تَّبَيَّنَ لَكُم مِّن مَّسَٰكِنِهِمْ ۖ وَزَيَّنَ لَهُمُ ٱلشَّيْطَٰنُ أَعْمَٰلَهُمْ فَصَدَّهُمْ عَنِ ٱلسَّبِيلِ وَكَانُوا۟ مُسْتَبْصِرِينَ
And (the tribes of) A'ad and Thamud! (Their fate) is manifest unto you from their (ruined and deserted) dwellings. Satan made their deeds seem fair unto them and so debarred them from the Way, though they were keen observers.
Surah Al-Ankaboot(29:38)