every hour on the hour
Definition of every hour on the hour
: at the beginning of each hour (at 12:00, 1:00, 2:00, etc.) Trains leave the station every hour on the hour.
From the M-W Editors
Word by Word Definitions
everyplay
: being each individual or part of a group without exception
: being each in a series or succession
: being all taken severally
See the full definition of every
hourplay
: a time or office for daily liturgical devotion
: canonical hour
: the 24th part of a day : 60 minutes
See the full definition of hour
Seen and Heard
What made you want to look up every hour on the hour? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!