Well, the Hijri date 12 Shawwal 1188 corresponds to the Gregorian date Thursday, 15 December 1774. This date lies in the tenth month of the Hijri year 1188 AH, which is Shawwal of 1188 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1188/10/12 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 15 December 1774 to its equivalent Arabic date.
The following is the conversion of the Arabic date 12 Shawwal 1188 AH to its equivalent Gregorian date.
وَقَالَ ٱلْمَلَأُ مِن قَوْمِهِ ٱلَّذِينَ كَفَرُوا۟ وَكَذَّبُوا۟ بِلِقَآءِ ٱلْءَاخِرَةِ وَأَتْرَفْنَٰهُمْ فِى ٱلْحَيَوٰةِ ٱلدُّنْيَا مَا هَٰذَآ إِلَّا بَشَرٌۭ مِّثْلُكُمْ يَأْكُلُ مِمَّا تَأْكُلُونَ مِنْهُ وَيَشْرَبُ مِمَّا تَشْرَبُونَ
And the chieftains of his folk, who disbelieved and denied the meeting of the Hereafter, and whom We had made soft in the life of the world, said: This is only a mortal like you, who eateth of that whereof ye eat and drinketh of that ye drink.
Surah Al-Muminoon(23:33)