Well, the Hijri date 25 Rajab 1189 corresponds to the Gregorian date Wednesday, 20 September 1775. This date lies in the seventh month of the Hijri year 1189 AH, which is Rajab of 1189 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1189/07/25 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 20 September 1775 to its equivalent Arabic date.
The following is the conversion of the Arabic date 25 Rajab 1189 AH to its equivalent Gregorian date.
۞ وَٱضْرِبْ لَهُم مَّثَلًۭا رَّجُلَيْنِ جَعَلْنَا لِأَحَدِهِمَا جَنَّتَيْنِ مِنْ أَعْنَٰبٍۢ وَحَفَفْنَٰهُمَا بِنَخْلٍۢ وَجَعَلْنَا بَيْنَهُمَا زَرْعًۭا
Coin for them a similitude: Two men, unto one of whom We had assigned two gardens of grapes, and We had surrounded both with date-palms and had put between them tillage.
Surah Al-Kahf(18:32)