Well, the Hijri date 4 Jumada Al Akhira 1509 corresponds to the Gregorian date Saturday, 19 January 2086. This date lies in the sixth month of the Hijri year 1509 AH, which is Jumada Al-Thani of 1509 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1509/06/04 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 19 January 2086 to its equivalent Arabic date.
The following is the conversion of the Arabic date 4 Jumada Al Akhira 1509 AH to its equivalent Gregorian date.
أَفَلَمْ يَنظُرُوٓا۟ إِلَى ٱلسَّمَآءِ فَوْقَهُمْ كَيْفَ بَنَيْنَٰهَا وَزَيَّنَّٰهَا وَمَا لَهَا مِن فُرُوجٍۢ
Have they not then observed the sky above them, how We have constructed it and beautified it, and how there are no rifts therein?
Surah Qaaf(50:6)