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    Time zone by letter and DST
    From: Bill B
    Date: 2007 Aug 19, 15:41 -0400

    The basic concept is clear to me, it is usage that I cannot track down.
    For example 0700 UTC/GMT would also be 0700 Zulu.
    Here in Indiana, USA I am in the eastern time zone at my home and on
    portions of Lake Michigan. (Indiana time zones is its own amusing topic.)
    When on standard time I subtract 5 hours from UTC for zone time.  When on
    daylight saving time I subtract 4 hours.
    Therefore if 0700 UTC or Zulu, my zone time is either 0200 or 0300,
    depending on whether or not daylight saving time is in effect.
    The designator for my time zone is Romeo (R). If I attach R or Romeo to the
    time in comminations or in the log, how do I account for standard or DST?
    Or is it just assumed that when used with a letter it is always standard
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