Well, the Hijri date 15 Safar 1197 corresponds to the Gregorian date Sunday, 19 January 1783. This date lies in the second month of the Hijri year 1197 AH, which is Safar of 1197 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1197/02/15 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 19 January 1783 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Safar 1197 AH to its equivalent Gregorian date.
فَإِنْ أَعْرَضُوا۟ فَقُلْ أَنذَرْتُكُمْ صَٰعِقَةًۭ مِّثْلَ صَٰعِقَةِ عَادٍۢ وَثَمُودَ
But if they turn away, then say: I warn you of a thunderbolt like the thunderbolt (which fell of old upon the tribes) of A'ad and Thamud;
Surah Fussilat(41:13)