p.m. or PM or Brit pm abbreviation
in the afternoon or evening — used with numbers to show the time of day ▪ She went to bed at 10 p.m. ▪ He works every day from 8:00 a.m. to/until 4:30 p.m. ▪ Lunch will be served at 12 p.m. [=noon; one hour after 11 a.m.] ◊The abbreviation p.m. stands for the Latin phrase post meridiem, which means “after noon.” — compare a.m.
