English

Alternative forms

• pm, PM, p.m.

Adverb

post meridiem ‎(not comparable)

1. after noon, in the afternoon.
   • 1853, John Drew, Manual of Astronomy: A Popular Treatise on Descriptive, Physical, and Practical Astronomy, with a Familiar Explanation of Astronomical Instruments and the Best Methods of Using Them, Second Edition, George Bell, page 237,

     The civil day begins at midnight, and reckons 12 hours ante meridiem, or before noon, and 12 hours post meridiem, or after noon.

   • 1923, Christopher Morley, The Powder of Sympathy, Doubleday, Page & Company, page 84,

     We reached that amiable town around two hours post meridiem, exceedingly hungry from our anxieties en route.

Antonyms

• ante meridiem