Well, the Hijri date 17 Rabi Al Thani 1215 corresponds to the Gregorian date Saturday, 6 September 1800. This date lies in the fourth month of the Hijri year 1215 AH, which is Rabi Al-Thani of 1215 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1215/04/17 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 6 September 1800 to its equivalent Arabic date.
The following is the conversion of the Arabic date 17 Rabi Al Thani 1215 AH to its equivalent Gregorian date.
وَإِذْ قَالَ رَبُّكَ لِلْمَلَٰٓئِكَةِ إِنِّى جَاعِلٌۭ فِى ٱلْأَرْضِ خَلِيفَةًۭ ۖ قَالُوٓا۟ أَتَجْعَلُ فِيهَا مَن يُفْسِدُ فِيهَا وَيَسْفِكُ ٱلدِّمَآءَ وَنَحْنُ نُسَبِّحُ بِحَمْدِكَ وَنُقَدِّسُ لَكَ ۖ قَالَ إِنِّىٓ أَعْلَمُ مَا لَا تَعْلَمُونَ
And when thy Lord said unto the angels: Lo! I am about to place a viceroy in the earth, they said: Wilt thou place therein one who will do harm therein and will shed blood, while we, we hymn Thy praise and sanctify Thee? He said: Surely I know that which ye know not.
Surah Al-Baqara(2:30)