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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. What Do AM and PM Stand For? - AOL

    www.aol.com/am-pm-stand-153002424.html

    Technically, 12:00 at night, which we know as “12 AM,” is exactly 12 hours after the previous noon and before the coming noon, so does it count as “before” noon or “after” it?

  4. every morning: quaque ante meridiem q.d., qd every day / daily quaque die q.h.s., qhs every night at bedtime quaque hora somni q.d.s, qds, QDS 4 times a day quater die sumendum q.i.d, qid 4 times a day quater in die q.h., qh every hour, hourly quaque hora q.o.d., qod every other day / alternate days quaque altera die q.p.m., qPM, qpm

  5. Date and time notation in the United States - Wikipedia

    en.wikipedia.org/wiki/Date_and_time_notation_in...

    In these cases, exact and unambiguous communication of time is critical. If someone mistakes 5:00 AM for 5:00 PM in a hospital for example, when medication or other medical treatment is needed at a certain time, the outcome could be dire. Thus 24-hour time (5:00 PM written as 17:00) is used.

  6. Sign-on and sign-off - Wikipedia

    en.wikipedia.org/wiki/Sign-on_and_sign-off

    A station identification, including some or all of the television channel, AM or FM frequency, call sign, branding, and a clock ident. Generally a station jingle or slogan will be played, accompanied on television with video clips featuring station programming or personalities. The Start-Up/Sign-On Notice is announced after the national anthem.

  7. Daytime television in the United States - Wikipedia

    en.wikipedia.org/wiki/Daytime_television_in_the...

    CBS currently allows both daytime game shows to be arranged as a two-hour block by affiliates (10AM ET) if preferred instead of bookending the schedule (11 AM and 3 PM ET). Of the current daytime game shows, The Price Is Right began as part of CBS's daytime game show block in 1972 and is the only show to have aired continuously on daytime ...

  8. Midnight - Wikipedia

    en.wikipedia.org/wiki/Midnight

    Solar midnight is the time opposite to solar noon, when the Sun is closest to the nadir, and the night is equidistant from sunset and sunrise. Due to the advent of time zones , which regularize time across a range of meridians , and daylight saving time , solar midnight rarely coincides with 12 midnight on the clock.

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