the initials pm and am mean what?

Question

i know pm is past midday and am is after midnight. but i believe their is a name for them other than am and pm

Answer 1

am means ANTE MERIDIANUM
pm means POST MERIDIANUM

Answer 2

According to both NASA and the British Royal Observatory, a.m. stands for ante-meridiem,
which is from Latin for "before the Sun has crossed the line."

And p.m. means post-meridiem,
which is from Latin for "after the Sun has crossed the line."

But what line are they talking about?

If you look on most world maps, you'll see horizontal latitude lines and vertical longitude lines.
These lines allow you to pinpoint any place on Earth.
The longitude lines are also called meridians.
So if you're standing at a meridian line and the Sun is directly overhead, it's noon at that spot.
Before it arrives overhead, it's a.m.
After the sun is overhead, it's p.m.

Happy am n pm! :)

Answer 3

PM means post meridian. AM means anti meridian. It means before or past noon and midnight, which are 12 hours apart.

Answer 4

One of the imaginary lines that go around the earth is called the meridian.

A.M. stands for ante-meridian and P.M. stands for post-meridian.

What that means is that someone decided that when then sun hits a certain spot before and after the imaginary line, they all agree that it's midnight (A.M.)and when it hits the other spot it's noon (P.M.)

Answer 5

These abbreviations represent the Latin phraes ante/post meridiem, which mean 'before/after midday'. They have been in use in English since the 17th century.

Answer 6

Pre and after

Answer 7

post meridian and anti-meridian

Answer 8

post-meridian and anti-meridian... i think!