Well, the Hijri date 20 Ramadan 1220 corresponds to the Gregorian date Wednesday, 11 December 1805. This date lies in the ninth month of the Hijri year 1220 AH, which is Ramadan of 1220 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1220/09/20 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 11 December 1805 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Ramadan 1220 AH to its equivalent Gregorian date.
وَلَا تَمْشِ فِى ٱلْأَرْضِ مَرَحًا ۖ إِنَّكَ لَن تَخْرِقَ ٱلْأَرْضَ وَلَن تَبْلُغَ ٱلْجِبَالَ طُولًۭا
And walk not in the earth exultant. Lo! thou canst not rend the earth, nor canst thou stretch to the height of the hills.
Surah Al-Israa(17:37)