timezone/systemv

   1 # @(#)systemv   7.3
   2
   3 # Old rules, should the need arise.
   4 # No attempt is made to handle Newfoundland, since it cannot be expressed
   5 # using the System V "TZ" scheme (half-hour offset), or anything outside
   6 # North America (no support for non-standard DST start/end dates), nor
   7 # the change in the DST rules in the US in 1987 (which occurred before
   8 # the old rules were written).
   9 #
  10 # If you need the old rules, uncomment ## lines and comment-out Link lines.
  11 # Compile this *without* leap second correction for true conformance.
  12
  13 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
  14 ## Rule SystemV min     1973    -       Apr     lastSun 2:00    1:00    D
  15 ## Rule SystemV min     1973    -       Oct     lastSun 2:00    0       S
  16 ## Rule SystemV 1974    only    -       Jan     6       2:00    1:00    D
  17 ## Rule SystemV 1974    only    -       Nov     lastSun 2:00    0       S
  18 ## Rule SystemV 1975    only    -       Feb     23      2:00    1:00    D
  19 ## Rule SystemV 1975    only    -       Oct     lastSun 2:00    0       S
  20 ## Rule SystemV 1976    max     -       Apr     lastSun 2:00    1:00    D
  21 ## Rule SystemV 1976    max     -       Oct     lastSun 2:00    0       S
  22
  23 # Zone  NAME            GMTOFF  RULES/SAVE      FORMAT  [UNTIL]
  24 ## Zone SystemV/AST4ADT -4:00   SystemV         A%sT
  25 ## Zone SystemV/EST5EDT -5:00   SystemV         E%sT
  26 ## Zone SystemV/CST6CDT -6:00   SystemV         C%sT
  27 ## Zone SystemV/MST7MDT -7:00   SystemV         M%sT
  28 ## Zone SystemV/PST8PDT -8:00   SystemV         P%sT
  29 ## Zone SystemV/YST9YDT -9:00   SystemV         Y%sT
  30 ## Zone SystemV/AST4    -4:00   -               AST
  31 ## Zone SystemV/EST5    -5:00   -               EST
  32 ## Zone SystemV/CST6    -6:00   -               CST
  33 ## Zone SystemV/MST7    -7:00   -               MST
  34 ## Zone SystemV/PST8    -8:00   -               PST
  35 ## Zone SystemV/YST9    -9:00   -               YST
  36 ## Zone SystemV/HST10   -10:00  -               HST
  37 # For now...
  38 Link    America/Halifax         SystemV/AST4ADT
  39 Link    America/New_York        SystemV/EST5EDT
  40 Link    America/Chicago         SystemV/CST6CDT
  41 Link    America/Denver          SystemV/MST7MDT
  42 Link    America/Los_Angeles     SystemV/PST8PDT
  43 Link    America/Anchorage       SystemV/YST9YDT
  44 Link    America/Puerto_Rico     SystemV/AST4
  45 Link    America/Indianapolis    SystemV/EST5
  46 Link    America/Regina          SystemV/CST6
  47 Link    America/Phoenix         SystemV/MST7
  48 Link    Pacific/Pitcairn        SystemV/PST8
  49 Link    Pacific/Gambier         SystemV/YST9
  50 Link    Pacific/Honolulu        SystemV/HST10