Well, the Hijri date 18 Rabi Al Thani 1304 corresponds to the Gregorian date Thursday, 13 January 1887. This date lies in the fourth month of the Hijri year 1304 AH, which is Rabi Al-Thani of 1304 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1304/04/18 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 13 January 1887 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Rabi Al Thani 1304 AH to its equivalent Gregorian date.
إِنَّ فِى ذَٰلِكَ لَءَايَةًۭ ۖ وَمَا كَانَ أَكْثَرُهُم مُّؤْمِنِينَ
Lo! herein is indeed a portent, yet most of them are not believers!
Surah Ash-Shu'araa(26:103)