Post Meridiem is PM. It is Latin for "after noon". For example, 1:30 PM.
Post Meridian is a typo.
Our bird goes wheels up at one o'clock- that's one o'clock post meridian.
12PM is commonly used improper terminology. There is no such thing. If you see it in print it is wrong and you may have to use context to determine what the writer meant. The abbreviations AM and PM stand for Ante Meridian and Post Meridian, respectively. The terms ante and post mean before and after. The term meridian refers to when the sun is at the middle of its arc across the sky. Nominally the sun is at its meridian at noon. Since it is *at* its meridian this is neither before nor after the meridian. It *is* the meridian. Likewise, midnight is neither 12 AM nor 12 PM. It is equally far from both. It is simply 12 midnight. The military clock is better than the civilian clock for many reasons. One is that eliminates the complexity of specifically accounting for whether a time is before of after midnight. On the military clock noon is read as 1200 hours, and midnight is read as 2400 hours.
"Morning." The abbreviations AM and PM stand for Ante Meridian and Post Meridian, respectively. The terms ante and post mean before and after. The term meridian refers to when the sun is at the middle of its arc across the sky. Nominally the sun is at its meridian at noon. Since it is *at* its meridian this is neither before nor after the meridian. It *is* the meridian. Likewise, midnight is neither 12 AM nor 12 PM. It is equally far from both. It is simply 12 midnight. The military clock is better than the civilian clock for many reasons. One is that eliminates the complexity of specifically accounting for whether a time is before of after midnight. On the military clock noon is read as 1200 hours, and midnight is read as 2400 hours.
The equator runs West-East and the prime meridian (Greenwich meridian) runs North-South.
The moon that crosses the meridian at 9pm will depend on the specific date and location. You can use a planetarium app or website to determine which moon will be crossing the meridian at that time for your location.
The term "post meridian" comes from Latin. "Post" means "after," and "meridian" refers to midday or noon. Together, "post meridian" signifies "after noon" or "after the middle of the day."
Ante meansbefore and post means behind.Meridian is from the Latin for Midday.Ante Meridian = am (before midday)Post Meridian = pm (after midday)
Ante-meridian and post meridian
Ante Meridian and Post Meridian
Anti meridian and post meridian :)
Post meridian, meaning after noon, is Latin.
Our bird goes wheels up at one o'clock- that's one o'clock post meridian.
AM is ante meridian - After 12Midnight and before 12 Noon. PM is post meridian - After 12 Noon and Before 12 Midnight.
It stands for anti meridian and pm would be post meridian
Am = Ante meridian and Pm = post meridian
AM stands for Ante Meridiem that is Latin for before noon. PM stands for post meridiem that stands for post noon.
Post Meridiem origin is Latin. The definition of Post Meridiem is something occurring in the afternoon. Such as "Would you like to meet up post meridian for lunch?"