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2 mar 2021 · Simply use the words “noon” and “midnight” instead of a.m. and p.m. On the 24-hour clock, both 00:00 and 24:00 indicate midnight. In informal usage, “12 o’clock” can be either noon or midnight.
Noon is neither a.m. nor p.m. Midnight is a part of the day that is ending, not the day that is beginning. When expressing times for “noon” and “midnight” it is best not to use numerals (12:00 a.m. and 12:00 p.m.). Avoid the redundant 12:00 noon and 12:00 midnight.
PM means post meridiem (after noon) and AM means before noon, so there is confusion as to what noon is, but there is no confusion that the hour after noon is PM, so 12:01-12:59 is PM, post meridiem, after the sun has passed the meridian.
There is no widely accepted convention for how midday and midnight should be represented: in English-speaking countries, "12 p.m." indicates 12 o'clock noon, while "12 a.m." means 12 o'clock midnight.
PM = Post meridiem: After noon. Using numbers from 1 to 12, followed by am or pm, the 12-hour clock system identifies all 24 hours of the day. For example, 5 am is early in the morning, and 5 pm is late in the afternoon; 1 am is one hour after midnight, while 11 pm is one hour before midnight.
28 mar 2024 · Many people get confused about whether to use AM or PM for noon and midnight. Here’s what you need to know: Noon is 12 PM and midnight is 12 AM. Remember, AM stands for the Latin phrase ‘ante meridiem’ which means before midday. So, anything before noon is AM. PM stands for ‘post meridiem’ or after midday, making any time after noon PM.
To avoid any confusion (and to make sure you arrive on time), it might be best to say 12 noon or 12 midnight instead. Alternatively, you could use the 24-hour clock system, where 12:00 is noon and 00:00 (or 24:00) is midnight.
