Well, the Hijri date 1 Shaban 1239 corresponds to the Gregorian date Wednesday, 31 March 1824. This date lies in the eighth month of the Hijri year 1239 AH, which is Shaban of 1239 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1239/08/01 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 31 March 1824 to its equivalent Arabic date.
The following is the conversion of the Arabic date 1 Shaban 1239 AH to its equivalent Gregorian date.
وَقَالُوا۟ لَوْلَآ أُنزِلَ عَلَيْهِ ءَايَٰتٌۭ مِّن رَّبِّهِۦ ۖ قُلْ إِنَّمَا ٱلْءَايَٰتُ عِندَ ٱللَّهِ وَإِنَّمَآ أَنَا۠ نَذِيرٌۭ مُّبِينٌ
And they say: Why are not portents sent down upon him from his Lord? Say: Portents are with Allah only, and I am but a plain warner.
Surah Al-Ankaboot(29:50)