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  2. 12-hour clock - Wikipedia

    en.wikipedia.org/wiki/12-hour_clock

    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". [34] E. G. Richards in his book Mapping Time (1999) provided a diagram in which 12 a.m. means noon and 12 p.m. means midnight. [35]

  3. Noon - Wikipedia

    en.wikipedia.org/wiki/Noon

    Noon (also known as noontime or midday) is 12 o'clock in the daytime. It is written as 12 noon, 12:00 m. (for meridiem, literally 12:00 midday), 12 p.m. (for post meridiem, literally "after midday"), 12 pm, or 12:00 (using a 24-hour clock) or 1200 (military time). Solar noon is the time when the Sun appears to contact the local celestial meridian.

  4. 1976–77 United States network television schedule (daytime)

    en.wikipedia.org/wiki/1976–77_United_States...

    In the Pacific Time Zone (from December 1975 to March 1977), ABC's lineup had its game shows aired in the morning, while the 12 Noon to 3 PM block featured The Edge of Night, Ryan's Hope, All My Children, One Life to Live, and General Hospital in succession. After April 1977, ABC's Pacific Time Zone daytime schedule began matching that of its ...

  5. 1966–67 United States network television schedule (daytime)

    en.wikipedia.org/wiki/1966–67_United_States...

    7:00 am 7:30 am 8:00 am 8:30 am 9:00 am 9:30 am 10:00 am 10:30 am 11:00 am 11:30 am noon 12:30 pm 1:00 pm 1:30 pm 2:00 pm 2:30 pm 3:00 pm 3:30 pm 4:00 pm 4:30 pm 5:00 pm 5:30 pm 6:00 pm 6:30 pm ABC Fall local programming Linus the Lionhearted In C O L O R: Beany and Cecil (R) The Peter Potamus Show (R) The Bullwinkle Show (R) Discovery In C O L ...

  6. 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 ...

  7. 1975–76 United States network television schedule (daytime)

    en.wikipedia.org/wiki/1975–76_United_States...

    7:00 am 7:30 am 8:00 am 8:30 am 9:00 am 9:30 am 10:00 am 10:30 am 11:00 am 11:30 am noon 12:30 pm 1:00 pm 1:30 pm 2:00 pm 2:30 pm 3:00 pm 3:30 pm 4:00 pm 4:30 pm 5:00 pm 5:30 pm 6:00 pm 6:30 pm ABC Fall Local/syndicated programming Hong Kong Phooey (R) The New Tom and Jerry/Grape Ape Show: The Lost Saucer: The New Adventures of Gilligan: Uncle ...

  8. 24-hour clock - Wikipedia

    en.wikipedia.org/wiki/24-hour_clock

    In the 24-hour time notation, the day begins at midnight, 00:00 or 0:00, and the last minute of the day begins at 23:59. Where convenient, the notation 24:00 may also be used to refer to midnight at the end of a given date [3] — that is, 24:00 of one day is the same time as 00:00 of the following day.

  9. 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.