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make/data/tzdata/systemv

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  29 # Old rules, should the need arise.
  30 # No attempt is made to handle Newfoundland, since it cannot be expressed
  31 # using the System V "TZ" scheme (half-hour offset), or anything outside
  32 # North America (no support for non-standard DST start/end dates), nor
  33 # the changes in the DST rules in the US after 1976 (which occurred after
  34 # the old rules were written).
  35 #
  36 # If you need the old rules, uncomment ## lines.
  37 # Compile this *without* leap second correction for true conformance.
  38 
  39 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
  40 Rule    SystemV min     1973    -       Apr     lastSun 2:00    1:00    D
  41 Rule    SystemV min     1973    -       Oct     lastSun 2:00    0       S
  42 Rule    SystemV 1974    only    -       Jan     6       2:00    1:00    D
  43 Rule    SystemV 1974    only    -       Nov     lastSun 2:00    0       S
  44 Rule    SystemV 1975    only    -       Feb     23      2:00    1:00    D
  45 Rule    SystemV 1975    only    -       Oct     lastSun 2:00    0       S
  46 Rule    SystemV 1976    max     -       Apr     lastSun 2:00    1:00    D
  47 Rule    SystemV 1976    max     -       Oct     lastSun 2:00    0       S
  48 
  49 # Zone  NAME            STDOFF  RULES/SAVE      FORMAT  [UNTIL]
  50 ## Zone SystemV/AST4ADT -4:00   SystemV         A%sT
  51 ## Zone SystemV/EST5EDT -5:00   SystemV         E%sT
  52 ## Zone SystemV/CST6CDT -6:00   SystemV         C%sT
  53 ## Zone SystemV/MST7MDT -7:00   SystemV         M%sT
  54 ## Zone SystemV/PST8PDT -8:00   SystemV         P%sT
  55 ## Zone SystemV/YST9YDT -9:00   SystemV         Y%sT
  56 ## Zone SystemV/AST4    -4:00   -               AST
  57 ## Zone SystemV/EST5    -5:00   -               EST
  58 ## Zone SystemV/CST6    -6:00   -               CST
  59 ## Zone SystemV/MST7    -7:00   -               MST
  60 ## Zone SystemV/PST8    -8:00   -               PST
  61 ## Zone SystemV/YST9    -9:00   -               YST
  62 ## Zone SystemV/HST10   -10:00  -               HST


  29 # Old rules, should the need arise.
  30 # No attempt is made to handle Newfoundland, since it cannot be expressed
  31 # using the System V "TZ" scheme (half-hour offset), or anything outside
  32 # North America (no support for non-standard DST start/end dates), nor
  33 # the changes in the DST rules in the US after 1976 (which occurred after
  34 # the old rules were written).
  35 #
  36 # If you need the old rules, uncomment ## lines.
  37 # Compile this *without* leap second correction for true conformance.
  38 
  39 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
  40 Rule    SystemV min     1973    -       Apr     lastSun 2:00    1:00    D
  41 Rule    SystemV min     1973    -       Oct     lastSun 2:00    0       S
  42 Rule    SystemV 1974    only    -       Jan     6       2:00    1:00    D
  43 Rule    SystemV 1974    only    -       Nov     lastSun 2:00    0       S
  44 Rule    SystemV 1975    only    -       Feb     23      2:00    1:00    D
  45 Rule    SystemV 1975    only    -       Oct     lastSun 2:00    0       S
  46 Rule    SystemV 1976    max     -       Apr     lastSun 2:00    1:00    D
  47 Rule    SystemV 1976    max     -       Oct     lastSun 2:00    0       S
  48 
  49 # Zone  NAME            GMTOFF  RULES/SAVE      FORMAT  [UNTIL]
  50 ## Zone SystemV/AST4ADT -4:00   SystemV         A%sT
  51 ## Zone SystemV/EST5EDT -5:00   SystemV         E%sT
  52 ## Zone SystemV/CST6CDT -6:00   SystemV         C%sT
  53 ## Zone SystemV/MST7MDT -7:00   SystemV         M%sT
  54 ## Zone SystemV/PST8PDT -8:00   SystemV         P%sT
  55 ## Zone SystemV/YST9YDT -9:00   SystemV         Y%sT
  56 ## Zone SystemV/AST4    -4:00   -               AST
  57 ## Zone SystemV/EST5    -5:00   -               EST
  58 ## Zone SystemV/CST6    -6:00   -               CST
  59 ## Zone SystemV/MST7    -7:00   -               MST
  60 ## Zone SystemV/PST8    -8:00   -               PST
  61 ## Zone SystemV/YST9    -9:00   -               YST
  62 ## Zone SystemV/HST10   -10:00  -               HST
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