What is AM and PM Meaning in Time? Ever wondered where AM and PM came from? Discover the fascinating history behind the 12-hour clock format and these terms, from ancient timekeeping to modern ...
An analogue clock, a clock with hands, shows the numbers 1 through to 12. It is a 12-hour clock. The first 12 hours of the day, from midnight to midday, are called am. The next 12 hours, from midday ...
Many people have heard of the circadian rhythms or biological processes that follow a 24-hour cycle. Sleeping at night and being awake during the day is a well-known example of a circadian rhythm.
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