Well, the Hijri date 29 Rajab 1431 corresponds to the Gregorian date Sunday, 11 July 2010. This date lies in the seventh month of the Hijri year 1431 AH, which is Rajab of 1431 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1431/07/29 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 11 July 2010 to its equivalent Arabic date.
The following is the conversion of the Arabic date 29 Rajab 1431 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)