A.m or P.m
"Meridianus" is Latin for "noon"; the phrases mean after noon and before noon.
AM: Ante Meridian (Before the middle, i.e noon) PM: Post Meridian (After the middle)
The period from midnight to noon is referred to as ante meridian, abbreviated as a.m. The period from noon to midnight is referred to as post meridian, abbreviated as p.m. Meridian refers to noon, when the sun is highest in the sky. Ante means before, and post means after.
AM = abbreviation for the Latin words "ante meridiem" (between midnight and noon) PM = abbreviation for the Latin words "post meridiem" (between noon and midnight) This is why A.M. is 12:00 midnight to 11:59 in the morning, and P.M. is 12:00 noon (i.e. the middle of the day) to 11:59 in the evening.
The abbreviation for "before noon" is "AM." It is the abbreviation for the Latin phrase ante meridian which means "before the high point (of the sun)"Similarly, "PM" is the abbreviation for the Latin post meridian, meaning "after the high point"
It's the short form of the Latin phrase 'Ante Meridian' - meaning before noon. PM is short for 'Post Meridian' meaning after noon.
Ante meansbefore and post means behind.Meridian is from the Latin for Midday.Ante Meridian = am (before midday)Post Meridian = pm (after midday)
AM= Ante Meridian PM= Post Meridian Actually that is wrong AM=Atlantic Morning PM=Pacific morning
Ante Meridian and Post Meridian
Ante-meridian and post meridian
AM stands for Ante Meridiem that is Latin for before noon. PM stands for post meridiem that stands for post noon.
AM is ante meridian - After 12Midnight and before 12 Noon. PM is post meridian - After 12 Noon and Before 12 Midnight.
Am = Ante meridian and Pm = post meridian
Ante meridian and post meridian. "Ante" is Latin for "before", "post" means after. Meridian is when the sun reaches its zenith, the highest point in its daily arc; i.e., noontime.
AM as in time means ANTE MERIDIAN PM means POST MERIDIAN
am= ante meridian pm= post meridian
Ante meridiem or meridian for A.M and Post meridiem or meridian.