Well, the Hijri date 25 Shawwal 1240 corresponds to the Gregorian date Saturday, 11 June 1825. This date lies in the tenth month of the Hijri year 1240 AH, which is Shawwal of 1240 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1240/10/25 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 11 June 1825 to its equivalent Arabic date.
The following is the conversion of the Arabic date 25 Shawwal 1240 AH to its equivalent Gregorian date.
وَلَقَدْ خَلَقْنَٰكُمْ ثُمَّ صَوَّرْنَٰكُمْ ثُمَّ قُلْنَا لِلْمَلَٰٓئِكَةِ ٱسْجُدُوا۟ لِءَادَمَ فَسَجَدُوٓا۟ إِلَّآ إِبْلِيسَ لَمْ يَكُن مِّنَ ٱلسَّٰجِدِينَ
And We created you, then fashioned you, then told the angels: Fall ye prostrate before Adam! And they fell prostrate, all save Iblis, who was not of those who make prostration.
Surah Al-A'raaf(7:11)