vs 

QUICK ANSWER
"AM" is a form of "AM", an abbreviation which is often translated as "AM". "P.m." is an abbreviation which is often translated as "p.m.". Learn more about the difference between "p.m." and "AM" below.
An abbreviation is the shortened form of a word or group of words (e.g., "UFO" = "unidentified flying object"; "p." = "page").
abbreviation
a. p.m.
Mis papás se duermen a las 9 p.m.My parents go to bed at 9 p.m.
b. pm
Tu programa empieza a las 10 p.m.Your show starts at 9 pm.
c. PM
En mi horario dice que tengo clases hasta las 8 p.m.My schedule says I have class until 8 PM.
Copyright © 2025 Dictionary Media Group, Inc.
An abbreviation is the shortened form of a word or group of words (e.g., "UFO" = "unidentified flying object"; "p." = "page").
abbreviation
a. AM
Estás sintonizando Radio Nova, AM 910.You're listening to Radio Nova, 910 AM.
Copyright © 2025 Dictionary Media Group, Inc.