bottom of the hour
English edit
Etymology edit
Refers to the time when the position of the long hand is pointing toward the number 6, or exactly halfway between the preceding hour and the upcoming one.
Noun edit
bottom of the hour (plural bottoms of the hour or bottoms of the hours)
- The time at (or very close to) half the next hour of time.
- At seven o'clock, he said to get in touch with him again at the bottom of the hour, so I called him back at seven thirty.