Well, the Hijri date 20 Dhul Hijjah 1305 corresponds to the Gregorian date Monday, 27 August 1888. This date lies in the twelfth month of the Hijri year 1305 AH, which is Dhu Al-Hijjah of 1305 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1305/12/20 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 27 August 1888 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Dhul Hijjah 1305 AH to its equivalent Gregorian date.
فَلَآ أُقْسِمُ بِٱلْخُنَّسِ
Oh, but I call to witness the planets,
Surah At-Takwir(81:15)