Well, the Hijri date 20 Ramadan 1159 corresponds to the Gregorian date Wednesday, 5 October 1746. This date lies in the ninth month of the Hijri year 1159 AH, which is Ramadan of 1159 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1159/09/20 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 5 October 1746 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Ramadan 1159 AH to its equivalent Gregorian date.
وَإِذْ أَنجَيْنَٰكُم مِّنْ ءَالِ فِرْعَوْنَ يَسُومُونَكُمْ سُوٓءَ ٱلْعَذَابِ ۖ يُقَتِّلُونَ أَبْنَآءَكُمْ وَيَسْتَحْيُونَ نِسَآءَكُمْ ۚ وَفِى ذَٰلِكُم بَلَآءٌۭ مِّن رَّبِّكُمْ عَظِيمٌۭ
And (remember) when We did deliver you from Pharaoh's folk who were afflicting you with dreadful torment, slaughtering your sons and sparing your women. That was a tremendous trial from your Lord.
Surah Al-A'raaf(7:141)