Well, the Hijri date 18 Rajab 1612 corresponds to the Gregorian date Tuesday, 7 February 2186. This date lies in the seventh month of the Hijri year 1612 AH, which is Rajab of 1612 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1612/07/18 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 7 February 2186 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Rajab 1612 AH to its equivalent Gregorian date.
أَوَكُلَّمَا عَٰهَدُوا۟ عَهْدًۭا نَّبَذَهُۥ فَرِيقٌۭ مِّنْهُم ۚ بَلْ أَكْثَرُهُمْ لَا يُؤْمِنُونَ
Is it ever so that when they make a covenant a party of them set it aside? The truth is, most of them believe not.
Surah Al-Baqara(2:100)