Well, the Hijri date 22 Jumada Al Akhira 1287 corresponds to the Gregorian date Sunday, 18 September 1870. This date lies in the sixth month of the Hijri year 1287 AH, which is Jumada Al-Thani of 1287 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1287/06/22 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 18 September 1870 to its equivalent Arabic date.
The following is the conversion of the Arabic date 22 Jumada Al Akhira 1287 AH to its equivalent Gregorian date.
وَقَالَ ٱلَّذِينَ كَفَرُوٓا۟ إِنْ هَٰذَآ إِلَّآ إِفْكٌ ٱفْتَرَىٰهُ وَأَعَانَهُۥ عَلَيْهِ قَوْمٌ ءَاخَرُونَ ۖ فَقَدْ جَآءُو ظُلْمًۭا وَزُورًۭا
Those who disbelieve say: This is naught but a lie that he hath invented, and other folk have helped him with it, so that they have produced a slander and a lie.
Surah Al-Furqaan(25:4)