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  2. Decimal time - Wikipedia

    en.wikipedia.org/wiki/Decimal_time

    Units were either written out in full, or abbreviated. Thus, five hours eighty three minutes decimal might be written as 5 h. 83 m. Even today, "h" is commonly used in France to separate hours and minutes of 24-hour time, instead of a colon, such as 14h00. Midnight was represented in civil records as "ten hours".

  3. 12-hour clock - Wikipedia

    en.wikipedia.org/wiki/12-hour_clock

    Minutes past the hour means those minutes are added to the hour; "ten past five" means 5:10. Minutes to, 'til and of the hour mean those minutes are subtracted; "ten of five", "ten 'til five", and "ten to five" all mean 4:50. Fifteen minutes is often called a quarter hour, and thirty minutes is often known as a half hour. For example, 5:15 can ...

  4. Unit of time - Wikipedia

    en.wikipedia.org/wiki/Unit_of_time

    About 17 minutes. hour: 60 min: deciday 0.1 d (10 % of a day) 2.4 hours, or 144 minutes. One-tenth of a day is 1 dd (deciday), also called "gēng" in traditional Chinese timekeeping. day: 24 h: Longest unit used on stopwatches and countdowns. The SI day is exactly 86 400 seconds. week: 7 d: Historically sometimes also called "sennight". decaday

  5. Academic quarter (class timing) - Wikipedia

    en.wikipedia.org/wiki/Academic_quarter_(class...

    Academic quarter only applies to time given in full hours, and the academic quarter can be removed by saying that the time is "on the dot" by adding the word "dot" ("prick" in Swedish) or an actual ".". E.g. 10 dot is 10:00. The dot removes one academic quarter, so in the evening time "on the dot" is written "dot dot" to remove both quarters ...

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

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

    The 24-hour clock is used in military, public safety, and scientific contexts in the United States. [4] It is best known for its use by the military and is therefore commonly called "military time". In U.S. military use, 24-hour time is traditionally written without a colon (1800 instead of 18:00).

  7. Carnegie Unit and Student Hour - Wikipedia

    en.wikipedia.org/wiki/Carnegie_Unit_and_Student_Hour

    The Student Hour is approximately 12 hours of class or contact time, approximately 1/10 of the Carnegie Unit (as explained below). As it is used today, a Student Hour is the equivalent of one hour (50 minutes) of lecture time for a single student per week over the course of a semester, usually 14 to 16 weeks.

  8. AOL Mail

    mail.aol.com

    AOL Mail is free and helps keep you safe. ... Should you need additional assistance we have experts available around the clock at 800-730-2563.

  9. Hour - Wikipedia

    en.wikipedia.org/wiki/Hour

    Midnight to 1 a.m. on a 24-hour clock with a digital face. 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.