“a.m.” means “ante meridiem” which means “before midday” and p.m. means “post meridiem”, which means “after midday”. Consequently to use am/pm to refer to midday, (12noon) is simply wrong (and similarly midnight). The correct terms are 12 noon and 12 midnight, with times in between using am/pm.

Is 12 noon 12pm or am?

When most people say 12pm, typically they’re talking about the middle of the day: 12 noon. When they say 12am, they normally mean 12 midnight. While most people follow this convention, technically it’s not quite right – as you’ll see from the definition of am and pm below.

Is 12 in the morning am?

The American Heritage Dictionary of the English Language states “By convention, 12 AM denotes midnight and 12 PM denotes noon. Because of the potential for confusion, it is advisable to use 12 noon and 12 midnight.”

Is 12 noon am or pm on Zoom?

If you want to set up a meeting that starts at noon, you would set it to start at 12 PM. If you would like to set up a meeting to start at midnight, it would start at 12 AM.