Well, the Hijri date 6 Rajab 1411 corresponds to the Gregorian date Monday, 21 January 1991. This date lies in the seventh month of the Hijri year 1411 AH, which is Rajab of 1411 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1411/07/06 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 21 January 1991 to its equivalent Arabic date.
The following is the conversion of the Arabic date 6 Rajab 1411 AH to its equivalent Gregorian date.
لَا ٱلشَّمْسُ يَنۢبَغِى لَهَآ أَن تُدْرِكَ ٱلْقَمَرَ وَلَا ٱلَّيْلُ سَابِقُ ٱلنَّهَارِ ۚ وَكُلٌّۭ فِى فَلَكٍۢ يَسْبَحُونَ
It is not for the sun to overtake the moon, nor doth the night outstrip the day. They float each in an orbit.
Surah Yaseen(36:40)