anchor.diff:  "92","CA","America/Thunder_Bay"
   "93","CA","America/Iqaluit"
   "94","CA","America/Pangnirtung"
  -"95","CA","America/Resolute"
  -"96","CA","America/Atikokan"
  -"97","CA","America/Rankin_Inlet"
  -"98","CA","America/Winnipeg"
  -"99","CA","America/Rainy_River"
  +"95","CA","America/Atikokan"
  +"96","CA","America/Winnipeg"
  +"97","CA","America/Rainy_River"
  +"98","CA","America/Resolute"
  +"99","CA","America/Rankin_Inlet"
   "100","CA","America/Regina"
   "101","CA","America/Swift_Current"
   "102","CA","America/Edmonton"
  
positive.code: "105","CA","America/Inuvik"
  "106","CA","America/Creston"
  "107","CA","America/Dawson_Creek"
  "108","CA","America/Vancouver"
  "109","CA","America/Whitehorse"
  "110","CA","America/Dawson"
  "111","CC","Indian/Cocos"
  "112","CD","Africa/Kinshasa"
  "113","CD","Africa/Lubumbashi"
  "114","CF","Africa/Bangui"
  "115","CG","Africa/Brazzaville"
  "116","CH","Europe/Zurich"
  "117","CI","Africa/Abidjan"
  "118","CK","Pacific/Rarotonga"
  "119","CL","America/Santiago"
  "120","CL","Pacific/Easter"
  "121","CM","Africa/Douala"
  "122","CN","Asia/Shanghai"
  "123","CN","Asia/Harbin"
  "124","CN","Asia/Chongqing"
  "125","CN","Asia/Urumqi"
  "126","CN","Asia/Kashgar"
  "127","CO","America/Bogota"
  "128","CR","America/Costa_Rica"
  "129","CU","America/Havana"
  "130","CV","Atlantic/Cape_Verde"
  "131","CW","America/Curacao"
  "132","CX","Indian/Christmas"
  "133","CY","Asia/Nicosia"
  "134","CZ","Europe/Prague"
  "135","DE","Europe/Berlin"
  "136","DE","Europe/Busingen"
  
negative.code: "7","AM","Asia/Yerevan"
  "8","AO","Africa/Luanda"
  "9","AQ","Antarctica/McMurdo"
  "10","AQ","Antarctica/Casey"
  "11","AQ","Antarctica/Davis"
  "12","AQ","Antarctica/DumontDUrville"
  "13","AQ","Antarctica/Mawson"
  "14","AQ","Antarctica/Palmer"
  "15","AQ","Antarctica/Rothera"
  "16","AQ","Antarctica/Syowa"
  "17","AQ","Antarctica/Troll"
  "18","AQ","Antarctica/Vostok"
  "19","AR","America/Argentina/Buenos_Aires"
  "20","AR","America/Argentina/Cordoba"
  "21","AR","America/Argentina/Salta"
  