Meaning of day hour in English:

day hour

noun

  • 1An hour of the day (as opposed to the night).

  • 2Christian Church
    (in plural) (in the Western Church) those prayers or offices for the canonical hours appointed to be said during the day, as opposed to during the night.

Origin

Mid 16th century; earliest use found in Leonard Digges (c1515–?c1559), mathematician.