Well, the Hijri date 12 Shaban 1408 corresponds to the Gregorian date Wednesday, 30 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 Wednesday without any doubt. The Arabic date 1408/08/12 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 30 March 1988 to its equivalent Arabic date.
The following is the conversion of the Arabic date 12 Shaban 1408 AH to its equivalent Gregorian date.
وَيَقُولُونَ لَوْلَآ أُنزِلَ عَلَيْهِ ءَايَةٌۭ مِّن رَّبِّهِۦ ۖ فَقُلْ إِنَّمَا ٱلْغَيْبُ لِلَّهِ فَٱنتَظِرُوٓا۟ إِنِّى مَعَكُم مِّنَ ٱلْمُنتَظِرِينَ
And they will say: If only a portent were sent down upon him from his Lord! Then say, (O Muhammad): The Unseen belongeth to Allah. So wait! Lo! I am waiting with you.
Surah Yunus(10:20)