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    Re: half-hour time zones
    From: Dan Allen
    Date: 2001 Nov 02, 9:21 PM

    The official history from some well-research Unix timezone work has
    Nepal being 5:41:16 ahead of GMT until 1920, then 5:30 until 1986,
    and now 5:45 ahead, which is closer to their older value.
    Timezones didn't come into being until the 1880s.
    -----Original Message-----
    From  Navigation Mailing List [mailto:NAVIGATION-L@LISTSERV.WEBKAHUNA.COM]On
    Behalf Of Trayfors, William
    Sent: Friday, November 02, 2001 6:54 PM
    Subject: Re: half-hour time zones
    There are some weird ones.    India is on the half-hour (GMT +5:30).   Nepal
    used to be...maybe still is... 40 minutes off the hour (just to be different
    from India) at GMT +5:40 :-))
    There may be others.
    At 06:44 PM 11/2/01 -0800, you wrote:
    >Anyone know why some places have time offsets not an integral number
    >of hours from Greenwich? Like Newfoundland. According to my atlas (a
    >few years old), standard time there is some hours and 30 minutes
    >behind Greenwich.
    >I don't see any advantage to such an odd time zone, and several
    >disadvantages. For example, I've heard that some GPS receivers won't
    >allow fractional hour offsets for the local time display. And my
    >watch, which has a secondary time zone, is the same way.
    >Years ago I wrote a program which had to know the local time offset
    >from Greenwich, and it accepted any offset, down to decimal seconds if
    >you wanted. No arbitrary limitations for me! But I can sympathize with
    >programmers who decline to cater to (or are ignorant of) weird time
    >I'd like to hear how Newfoundland got that time zone.
    >paulhirose@earthlink.net (Paul Hirose)
    Washington Decision Support Group, Inc.
    Advanced Information Technology Consultants
    2401 South Lynn Street,  Arlington, VA 22202
    Tel 703-838-8784               Fax 703-838-0019

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