Well, the Hijri date 7 Shawwal 1235 corresponds to the Gregorian date Monday, 17 July 1820. This date lies in the tenth month of the Hijri year 1235 AH, which is Shawwal of 1235 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1235/10/07 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 17 July 1820 to its equivalent Arabic date.
The following is the conversion of the Arabic date 7 Shawwal 1235 AH to its equivalent Gregorian date.
وَكَذَٰلِكَ أَنزَلْنَٰهُ قُرْءَانًا عَرَبِيًّۭا وَصَرَّفْنَا فِيهِ مِنَ ٱلْوَعِيدِ لَعَلَّهُمْ يَتَّقُونَ أَوْ يُحْدِثُ لَهُمْ ذِكْرًۭا
Thus we have revealed it as a Lecture in Arabic, and have displayed therein certain threats, that peradventure they may keep from evil or that it may cause them to take heed.
Surah Taa-Haa(20:113)