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It is a a.m
PM is usually an abbreviation of the Latin phrase post meridiem (also written P.M., p.m., and pm), "after noon" in the 12-hour clock, in contrast to ante meridiem (a.m., "before noon").
Noon (also mid-day or noon time) is defined as 12 o'clock in the daytime. The word noon is also used informally to mean midday