Well, the Hijri date 29 Rajab 1288 corresponds to the Gregorian date Friday, 13 October 1871. This date lies in the seventh month of the Hijri year 1288 AH, which is Rajab of 1288 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1288/07/29 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 October 1871 to its equivalent Arabic date.
The following is the conversion of the Arabic date 29 Rajab 1288 AH to its equivalent Gregorian date.
فَكَيْفَ إِذَا تَوَفَّتْهُمُ ٱلْمَلَٰٓئِكَةُ يَضْرِبُونَ وُجُوهَهُمْ وَأَدْبَٰرَهُمْ
Then how (will it be with them) when the angels gather them, smiting their faces and their backs!
Surah Muhammad(47:27)