What does am and pm mean? The 12-hour clock divides the 24 hour day into two periods: am - stands for the Latin ante meridiem, translating to "before midday", before the sun has crossed the meridian line. pm - stands for post meridiem or "after midday", after the sun has crossed the meridian line.

Is it Am Night or Day?

The A stands before the P in the alphabet. AM comes first in the alphabet and therefore also first on a day (Morning) and PM comes last (afternoon/night). 3. PM – Passes Midday.

What do u mean by AM?

Yup, the abbreviation a.m. is short for the Latin ante meridiem, meaning “before noon,” which refers to the period from midnight until noon. ... One minute after noon is 12:01 p.m.