The period of time from midnight to noon, especially the period of daylight before noon.
Abbreviation of latin ante merīdiem.
- The meeting is scheduled for 9 a.m.
- She wakes up at 6 a.m. every morning.
- The store opens at 10 a.m.
- The flight departs at 7 a.m.
- The event will start at 8 a.m.