IDLW    -1200    International Date Line West
      NT      -1100    Nome
      HST     -1000    Hawaii Standard
      CAT     -1000    Central Alaska
      AHST    -1000    Alaska-Hawaii Standard
      YST     -0900    Yukon Standard
      HDT     -0900    Hawaii Daylight
      YDT     -0800    Yukon Daylight
      PST     -0800    Pacific Standard
      PDT     -0700    Pacific Daylight
      MST     -0700    Mountain Standard
      MDT     -0600    Mountain Daylight
      CST     -0600    Central Standard
      CDT     -0500    Central Daylight
      EST     -0500    Eastern Standard
      SAT     -0400    Chile
      EDT     -0400    Eastern Daylight
      AST     -0400    Atlantic Standard
     #NST     -0330    Newfoundland Standard       nst=North Sumatra    +0630
      NFT     -0330    Newfoundland
     #GST     -0300    Greenland Standard          gst=Guam Standard    +1000
     #BST     -0300    Brazil Standard             bst=British Summer   +0100
      ADT     -0300    Atlantic Daylight
      NDT     -0230    Newfoundland Daylight
      AT      -0200    Azores
      WAT     -0100    West Africa
      GMT     +0000    Greenwich Mean
      UT      +0000    Universal (Coordinated)
      UTC     +0000    Universal (Coordinated)
      WET     +0000    Western European
      CET     +0100    Central European
      FWT     +0100    French Winter
      MET     +0100    Middle European
      MEWT    +0100    Middle European Winter
      SWT     +0100    Swedish Winter
      BST     +0100    British Summer              bst=Brazil standard  -0300
      GB      +0100    GMT with daylight savings
      CEST    +0200    Central European Summer
      EET     +0200    Eastern Europe, USSR Zone 1
      FST     +0200    French Summer
      MEST    +0200    Middle European Summer
      METDST  +0200    An alias for MEST used by HP-UX
      SST     +0200    Swedish Summer              sst=South Sumatra    +0700
      EEST    +0300    Eastern Europe Summer
      BT      +0300    Baghdad, USSR Zone 2
      IT      +0330    Iran
      ZP4     +0400    USSR Zone 3
      ZP5     +0500    USSR Zone 4
      IST     +0530    Indian Standard
      ZP6     +0600    USSR Zone 5
      NST     +0630    North Sumatra               nst=Newfoundland Std -0330
     #SST     +0700    South Sumatra, USSR Zone 6  sst=Swedish Summer   +0200
      CCT     +0800    China Coast, USSR Zone 7
      AWST    +0800    West Australian Standard
      WST     +0800    West Australian Standard
      JST     +0900    Japan Standard, USSR Zone 8
      ROK     +0900    Republic of Korea
      CAST    +0930    Central Australian Standard
      EAST    +1000    Eastern Australian Standard
      GST     +1000    Guam Standard, USSR Zone 9  gst=Greenland Std    -0300
      CADT    +1030    Central Australian Daylight
      EADT    +1100    Eastern Australian Daylight
      IDLE    +1200    International Date Line East
      NZST    +1200    New Zealand Standard
      NZT     +1200    New Zealand
      NZDT    +1300    New Zealand Daylight