Listen to We Know Not the Hour (We Know Not the Hour) [Instrumental Version] online. We Know Not the Hour (We Know Not the Hour) [Instrumental Version] is an English language song and is sung by John Keys. We Know Not the Hour (We Know Not the Hour) [Instrumental Version], from the album Seventh Day Adventist Hymns, Vol. 2 (Organ Accompaniments), was released in the year 2008. The duration of the song is 3:13. Download English songs online from JioSaavn.