The earth’s revolution around the sun makes 365 days while, the moon’s 12 revolution around the earth makes12 months. The Quran says that there are 12 months in year. As we all know, a year consists of 12 months. On the other hand, in the Quran, the word “a month” (þehr) is also mentioned 12 times to indicate that there are 12 months in a year.The following verse mentions this:

36- …twelve is the number of months with God…
                                           9 – Repentance, 36