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    Re: Greenwich getting a challenge
    From: Marcel Tschudin
    Date: 2010 Aug 14, 08:49 +0300

    Frank, you wrote:
    > Another "Mecca Time" that could be defined and disseminated would be Local
    > Mean Time in Mecca.
    If they really would stick to their rules the hours should be counted
    from sunset to sunset because in their religion a new day starts at
    The calender system, where the beginning of a new month is based on
    either first visibility of the moon crescent or on what some clerics
    define it to be, is so vague that it can't be used in daily life,
    except for religious purposes where people BELIEVE that a certain day
    of the Gregorian calender corresponds to a particular one in the moon
    calendar. In order to understand what a certain day and time of the
    moon calendar corresponds to on the time scale requires each time the
    additional information of the location with longitude and latitude
    (eventually also its altitude) and the criteria used for starting a
    new month. Imagine the problems you would face when booking tickets
    for an international trip based on the moon calendar only.

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