on the half hour
phrase
: at half past the hour : at 12:30, 1:30, 2:30, etc.
Tours start on the half hour.
Cite this Entry
“On the half hour.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/on%20the%20half%20hour. Accessed 12 Mar. 2026.
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