Well, the Hijri date 17 Rajab 1211 corresponds to the Gregorian date Sunday, 15 January 1797. This date lies in the seventh month of the Hijri year 1211 AH, which is Rajab of 1211 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1211/07/17 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 15 January 1797 to its equivalent Arabic date.
The following is the conversion of the Arabic date 17 Rajab 1211 AH to its equivalent Gregorian date.
إِذْ قَالَتِ ٱلْمَلَٰٓئِكَةُ يَٰمَرْيَمُ إِنَّ ٱللَّهَ يُبَشِّرُكِ بِكَلِمَةٍۢ مِّنْهُ ٱسْمُهُ ٱلْمَسِيحُ عِيسَى ٱبْنُ مَرْيَمَ وَجِيهًۭا فِى ٱلدُّنْيَا وَٱلْءَاخِرَةِ وَمِنَ ٱلْمُقَرَّبِينَ
(And remember) when the angels said: O Mary! Lo! Allah giveth thee glad tidings of a word from him, whose name is the Messiah, Jesus, son of Mary, illustrious in the world and the Hereafter, and one of those brought near (unto Allah).
Surah Aal-i-Imraan(3:45)