Well, the Hijri date 15 Rajab 1259 corresponds to the Gregorian date Thursday, 10 August 1843. This date lies in the seventh month of the Hijri year 1259 AH, which is Rajab of 1259 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1259/07/15 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 10 August 1843 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Rajab 1259 AH to its equivalent Gregorian date.
فَٱنطَلَقَا حَتَّىٰٓ إِذَا رَكِبَا فِى ٱلسَّفِينَةِ خَرَقَهَا ۖ قَالَ أَخَرَقْتَهَا لِتُغْرِقَ أَهْلَهَا لَقَدْ جِئْتَ شَيْـًٔا إِمْرًۭا
Surah Al-Kahf(18:71)