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  1. time zone is a region on Earth, more or less bounded by lines...standard time , usually referred to as the local time . By convention, the 24 main time zones on Earth compute their local time as an offset from UTC (see also...

    4 Answers · Science & Mathematics · 24/09/2010

  2. ... change. There are variations of the definitions of time zone which generally fall into two meanings: a time zone can represent a region where...

    2 Answers · Science & Mathematics · 19/12/2007

  3. There are 24 standard time zones based on a 15 degree arc around the Earth. There are...

    4 Answers · Science & Mathematics · 17/09/2008

  4. ... Fleming in 1879, divided the world into twenty-four time zones , each one covering exactly 15 degrees of longitude. All ...

    2 Answers · Science & Mathematics · 07/10/2008

  5. ... the last depends on your definitions of "enter the day." If you mean...during southern summer. As you count the time zones west from Greenwich, each an hour ...

    2 Answers · Science & Mathematics · 14/01/2009

  6. ...other person who answered, time zones are made to convenience...tell you where you are and what time you are in space based...and the moon. But the real definition of time is the position and speed...

    8 Answers · Science & Mathematics · 28/05/2011

  7. ... circumstances apply in many places. The definition for time zones can be written in short form as UTC±n (or GMT±n), where n...

    5 Answers · Science & Mathematics · 21/08/2008

  8. ... circumstances apply in many places. The definition for time zones can be written in short form as UTC±n (or GMT±n), where n...

    4 Answers · Science & Mathematics · 08/06/2013

  9. AM and PM are abbreviations for ante meridiem and post meridiem. These are latin words meaning before noon and after noon AM =Ante Meridiem which simply means BEFORE NOON and thus PM...

    5 Answers · Education & Reference · 16/03/2011

  10. Latin ante (before) meridiem (midday)

    1 Answers · Education & Reference · 21/03/2011

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