Well, the Hijri date 22 Jumada Al Oula 1198 corresponds to the Gregorian date Monday, 12 April 1784. This date lies in the fifth month of the Hijri year 1198 AH, which is Jumada Al-Awwal of 1198 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1198/05/22 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 12 April 1784 to its equivalent Arabic date.
The following is the conversion of the Arabic date 22 Jumada Al Oula 1198 AH to its equivalent Gregorian date.
فَذَرْهُمْ يَخُوضُوا۟ وَيَلْعَبُوا۟ حَتَّىٰ يُلَٰقُوا۟ يَوْمَهُمُ ٱلَّذِى يُوعَدُونَ
So let them flounder (in their talk) and play until they meet the Day which they are promised.
Surah Az-Zukhruf(43:83)