Well, the Hijri date 20 Dhul Hijjah 1524 corresponds to the Gregorian date Friday, 18 February 2101. This date lies in the twelfth month of the Hijri year 1524 AH, which is Dhu Al-Hijjah of 1524 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1524/12/20 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 18 February 2101 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Dhul Hijjah 1524 AH to its equivalent Gregorian date.
فَأَعْقَبَهُمْ نِفَاقًۭا فِى قُلُوبِهِمْ إِلَىٰ يَوْمِ يَلْقَوْنَهُۥ بِمَآ أَخْلَفُوا۟ ٱللَّهَ مَا وَعَدُوهُ وَبِمَا كَانُوا۟ يَكْذِبُونَ
So He hath made the consequence (to be) hypocrisy in their hearts until the day when they shall meet Him, because they broke their word to Allah that they promised Him, and because they lied.
Surah At-Tawba(9:77)