Quran was revealed in approx 22 and a half years. Does anyone have the exact total time for this with a authentic source?
From the Qur'an and the tradition, scholars say that Qur'an was revealed twice.
Once, it was revealed in full at the night of Qadr. Although scholars have not reached a consensus as to its time and place.
Second time it was gradually revealed in a span of 23 years.