Well, the Hijri date 20 Shaban 1439 corresponds to the Gregorian date Sunday, 6 May 2018. This date lies in the eighth month of the Hijri year 1439 AH, which is Shaban of 1439 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1439/08/20 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 6 May 2018 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Shaban 1439 AH to its equivalent Gregorian date.
ٱتَّبِعُوا۟ مَآ أُنزِلَ إِلَيْكُم مِّن رَّبِّكُمْ وَلَا تَتَّبِعُوا۟ مِن دُونِهِۦٓ أَوْلِيَآءَ ۗ قَلِيلًۭا مَّا تَذَكَّرُونَ
(Saying): Follow that which is sent down unto you from your Lord, and follow no protecting friends beside Him. Little do ye recollect!
Surah Al-A'raaf(7:3)