Well, the Hijri date 18 Jumada Al Akhira 1239 corresponds to the Gregorian date Wednesday, 18 February 1824. This date lies in the sixth month of the Hijri year 1239 AH, which is Jumada Al-Thani of 1239 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1239/06/18 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 1824 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Jumada Al Akhira 1239 AH to its equivalent Gregorian date.
وَمَا كُنتَ بِجَانِبِ ٱلْغَرْبِىِّ إِذْ قَضَيْنَآ إِلَىٰ مُوسَى ٱلْأَمْرَ وَمَا كُنتَ مِنَ ٱلشَّٰهِدِينَ
And thou (Muhammad) wast not on the western side (of the Mount) when We expounded unto Moses the commandment, and thou wast not among those present;
Surah Al-Qasas(28:44)