PM

PM or pm may refer to:

Post meridiem (p.m.), the second half of the day on a 12-hour clock
Prime minister
Promethium (symbol Pm), a chemical element
Petametre (Pm), a unit of length (1015 m)
Picometre (pm), a unit of length (10−12 m)
Picomolar (pM), a unit of molar concentration
Particulate matter, very small particles suspended in the air
Saint Pierre and Miquelon (ISO country code)
.pm, internet top-level domain for Saint Pierre and Miquelon

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