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  2. 12-hour clock - Wikipedia

    en.wikipedia.org/wiki/12-hour_clock

    The 12-hour clock is a time convention in which the 24 hours of the day are divided into two periods: a.m. (from Latin ante meridiem, translating to "before midday") and p.m. (from Latin post meridiem, translating to "after midday").

  3. Midnight - Wikipedia

    en.wikipedia.org/wiki/Midnight

    Though there is no global unanimity on the issue, most often midnight is considered the start of a new day and is associated with the hour 00:00. Strictly speaking, it is incorrect to use "a.m." and "p.m." when referring to noon or midnight. The abbreviation a.m. stands for ante meridiem or before noon, and p.m. stands for post meridiem or ...

  4. Witching hour - Wikipedia

    en.wikipedia.org/wiki/Witching_hour

    In folklore, the witching hour or devil's hour is a time of night that is associated with supernatural events, whereby witches, demons and ghosts are thought to appear and be at their most powerful. Definitions vary, and include the hour immediately after midnight and the time between 3:00 am and 4:00 am.

  5. Abbrev. [1]Meaning [1] Latin (or Neo-Latin) origin [1]; a.c. before meals: a.d., ad, AD right ear auris dextra a.m., am, AM morning: ante meridiem: nocte every night ...

  6. Hour - Wikipedia

    en.wikipedia.org/wiki/Hour

    An hour (symbol: h; [1] also abbreviated hr) is a unit of time historically reckoned as 1 ⁄ 24 of a day and defined contemporarily as exactly 3,600 seconds . There are 60 minutes in an hour, and 24 hours in a day. The hour was initially established in the ancient Near East as a variable measure of 1 ⁄ 12 of the night or daytime.

  7. Knowing your sleep chronotype can lead to better rest and health

    www.aol.com/knowing-sleep-chronotype-lead-better...

    Individuals who are considered the Lion chronotype typically wake up early (around 6 a.m.), are more productive in the morning hours and prefer to nap around 1:30 p.m., according to a report by ...

  8. Morning - Wikipedia

    en.wikipedia.org/wiki/Morning

    Morning on a farm in Namibia, just after sunrise. Morning is the period from sunrise to noon.It is preceded by the twilight period of dawn.There are no exact times for when morning begins (also true of evening and night) because it can vary according to one's lifestyle, latitude, and the hours of daylight at each time of year. [1]

  9. Why do we work 9 to 5? The history of the eight-hour workday

    www.aol.com/why-9-5-history-eight-105902493.html

    September 9, 2023 at 3:59 AM. US work culture revolves around employees putting in eight hours a day, five days a week — a schedule immortalized by Dolly Parton in her 1980 song “9 to 5.” ...