Well, the Hijri date 14 Dhul Hijjah 1259 corresponds to the Gregorian date Thursday, 4 January 1844. This date lies in the twelfth month of the Hijri year 1259 AH, which is Dhu Al-Hijjah of 1259 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1259/12/14 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 4 January 1844 to its equivalent Arabic date.
The following is the conversion of the Arabic date 14 Dhul Hijjah 1259 AH to its equivalent Gregorian date.
وَإِذْ قَالَ عِيسَى ٱبْنُ مَرْيَمَ يَٰبَنِىٓ إِسْرَٰٓءِيلَ إِنِّى رَسُولُ ٱللَّهِ إِلَيْكُم مُّصَدِّقًۭا لِّمَا بَيْنَ يَدَىَّ مِنَ ٱلتَّوْرَىٰةِ وَمُبَشِّرًۢا بِرَسُولٍۢ يَأْتِى مِنۢ بَعْدِى ٱسْمُهُۥٓ أَحْمَدُ ۖ فَلَمَّا جَآءَهُم بِٱلْبَيِّنَٰتِ قَالُوا۟ هَٰذَا سِحْرٌۭ مُّبِينٌۭ
And when Jesus son of Mary said: O Children of Israel! Lo! I am the messenger of Allah unto you, confirming that which was (revealed) before me in the Torah, and bringing good tidings of a messenger who cometh after me, whose name is the Praised One. Yet when he hath come unto them with clear proofs, they say: This is mere magic.
Surah As-Saff(61:6)