• A.M. means before 12 noon.
  • P.M. means after 12 noon.
  • A.M.
  • P.M.
  • Ann is out with friends one Saturday evening.
  • Evening is after 12 noon, but before 12 midnight. It is P.M.
  • A.M.
  • P.M.
  • Ann is sitting by the window one evening.
  • Evening is after 12 noon, but before 12 midnight. It is P.M.
  • A.M.
  • P.M.
  • David is swimming on a hot afternoon.
  • Afternoon is after 12 noon. It is P.M.