Well, the Hijri date 25 Shaban 1386 corresponds to the Gregorian date Wednesday, 7 December 1966. This date lies in the eighth month of the Hijri year 1386 AH, which is Shaban of 1386 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1386/08/25 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 7 December 1966 to its equivalent Arabic date.
The following is the conversion of the Arabic date 25 Shaban 1386 AH to its equivalent Gregorian date.
وَٱلْقَمَرَ قَدَّرْنَٰهُ مَنَازِلَ حَتَّىٰ عَادَ كَٱلْعُرْجُونِ ٱلْقَدِيمِ
And for the moon We have appointed mansions till she return like an old shrivelled palm-leaf.
Surah Yaseen(36:39)