What Is The Full Form Of AM?

By | December 15, 2021

Full Form of AM Or AM Full Form

Full Form Of AM Is a Ante Meridiem

Full Form Of AM, AM Full Form
Full Form AM

Some Details About AM

A time convention is the 12-hour clock in which the 24 hours of the day are divided into two periods: a.m. (In Latin a.m. is called ante meridiem, translating to before midday) and p.m. (In Latin p.m. is called post meridiem translating to after midday). Each period consists of 12 hours numbered: 12 (acting as zero), 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11. The 24 hours/day cycle starts at 12 midnight (usually indicated as 12 a.m.), runs through 12 noon (usually indicated as 12 p.m.), and continues just before midnight at the end of the day. The 12-hour clock was developed from the middle of the second millennium BC to the 16th century AD.

The 12-hour clock can be traced back as far as Mesopotamia and ancient Egypt. Both an Egyptian sundial for daytime use and an Egyptian water clock for night-time use were found in the tomb of Pharaoh Amenhotep. Dating to c. 1500 BC, these clocks divided their respective times of use into 12 hours each.

It is not always clear what times “12:00 a.m.” and “12:00 p.m.” denote. From the Latin words meridians (midday), ante (before), and post (after), the term ante meridiem (a.m.) means before midday and post meridiem (p.m.) means after midday. Since “noon” (midday, meridians (m.)) is neither before nor after itself, the terms a.m. and p.m. do not apply. Although “12 m.” was suggested as a way to indicate noon, this is seldom done and also does not resolve the question of how to indicate midnight.

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