Well, the Hijri date 18 Shaban 1240 corresponds to the Gregorian date Wednesday, 6 April 1825. This date lies in the eighth month of the Hijri year 1240 AH, which is Shaban of 1240 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1240/08/18 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 6 April 1825 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Shaban 1240 AH to its equivalent Gregorian date.
وَلَا يَحْسَبَنَّ ٱلَّذِينَ كَفَرُوٓا۟ أَنَّمَا نُمْلِى لَهُمْ خَيْرٌۭ لِّأَنفُسِهِمْ ۚ إِنَّمَا نُمْلِى لَهُمْ لِيَزْدَادُوٓا۟ إِثْمًۭا ۚ وَلَهُمْ عَذَابٌۭ مُّهِينٌۭ
And let not those who disbelieve imagine that the rein We give them bodeth good unto their souls. We only give them rein that they may grow in sinfulness. And theirs will be a shameful doom.
Surah Aal-i-Imraan(3:178)