Well, the Hijri date 20 Dhul Hijjah 1209 corresponds to the Gregorian date Tuesday, 7 July 1795. This date lies in the twelfth month of the Hijri year 1209 AH, which is Dhu Al-Hijjah of 1209 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1209/12/20 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 July 1795 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Dhul Hijjah 1209 AH to its equivalent Gregorian date.
قُل لِّلَّذِينَ كَفَرُوٓا۟ إِن يَنتَهُوا۟ يُغْفَرْ لَهُم مَّا قَدْ سَلَفَ وَإِن يَعُودُوا۟ فَقَدْ مَضَتْ سُنَّتُ ٱلْأَوَّلِينَ
Tell those who disbelieve that if they cease (from persecution of believers) that which is past will be forgiven them; but if they return (thereto) then the example of the men of old hath already gone (before them, for a warning).
Surah Al-Anfaal(8:38)