The Kitáb-i-Aqdas

With reference to attending dawn prayers in the Mashriqu’l-Adhkár, the Bahá’í House of Worship, Bahá’u’lláh has explained that, although the actual time specified in the Book of God is “the hour of dawn”, it is acceptable at any time from “the earliest dawn of day, between dawn and sunrise, or even up to two hours after sunrise” (Q and A 15).