Well, the Hijri date 11 Shaban 1408 corresponds to the Gregorian date Tuesday, 29 March 1988. This date lies in the eighth month of the Hijri year 1408 AH, which is Shaban of 1408 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1408/08/11 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 29 March 1988 to its equivalent Arabic date.
The following is the conversion of the Arabic date 11 Shaban 1408 AH to its equivalent Gregorian date.
وَلَوْ يُؤَاخِذُ ٱللَّهُ ٱلنَّاسَ بِظُلْمِهِم مَّا تَرَكَ عَلَيْهَا مِن دَآبَّةٍۢ وَلَٰكِن يُؤَخِّرُهُمْ إِلَىٰٓ أَجَلٍۢ مُّسَمًّۭى ۖ فَإِذَا جَآءَ أَجَلُهُمْ لَا يَسْتَـْٔخِرُونَ سَاعَةًۭ ۖ وَلَا يَسْتَقْدِمُونَ
If Allah were to take mankind to task for their wrong-doing, he would not leave hereon a living creature, but He reprieveth them to an appointed term, and when their term cometh they cannot put (it) off an hour nor (yet) advance (it).
Surah An-Nahl(16:61)