Well, the Hijri date 22 Rajab 1617 corresponds to the Gregorian date Sunday, 19 December 2190. This date lies in the seventh month of the Hijri year 1617 AH, which is Rajab of 1617 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1617/07/22 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 19 December 2190 to its equivalent Arabic date.
The following is the conversion of the Arabic date 22 Rajab 1617 AH to its equivalent Gregorian date.
وَأَقْسَمُوا۟ بِٱللَّهِ جَهْدَ أَيْمَٰنِهِمْ ۙ لَا يَبْعَثُ ٱللَّهُ مَن يَمُوتُ ۚ بَلَىٰ وَعْدًا عَلَيْهِ حَقًّۭا وَلَٰكِنَّ أَكْثَرَ ٱلنَّاسِ لَا يَعْلَمُونَ
And they swear by Allah their most binding oaths (that) Allah will not raise up him who dieth. Nay, but it is a promise (binding) upon Him in truth, but most of mankind know not,
Surah An-Nahl(16:38)