| America/Buenos_Aires |
E Argentina (BA, DF, SC, TF) |
| America/Cordoba |
most locations (CB,CC,CH,CN,ER,FM,LP,LR,MN,NQ,RN,SA,SE,SF,SJ,SL,TM) |
| America/Jujuy |
Jujuy (JY) |
| America/Catamarca |
Catamarca (CT) |
| America/Mendoza |
Mendoza (MZ) |
| America/Noronha |
Atlantic islands |
| America/Belem |
Amapa, E Para |
| America/Fortaleza |
NE Brazil (MA, PI, CE, RN, PR) |
| America/Recife |
Pernambuco |
| America/Araguaina |
Tocantins |
| America/Maceio |
Alagoas, Sergipe |
| America/Sao_Paulo |
S & SE Brazil (BA, GO, DF, MG, ES, RJ, SP, PR, SC, RS) |
| America/Cuiaba |
Mato Grosso, Mato Grosso do Sul |
| America/Porto_Velho |
W Para, Rondonia |
| America/Boa_Vista |
Roraima |
| America/Manaus |
E Amazonas |
| America/Eirunepe |
W Amazonas |
| America/Rio_Branco |
Acre |
| America/St_Johns |
Newfoundland Island |
| America/Halifax |
Atlantic Time - Nova Scotia (most places), NB, W Labrador, E Quebec & PEI |
| America/Glace_Bay |
Atlantic Time - Nova Scotia - places that did not observe DST 1966-1971 |
| America/Goose_Bay |
Atlantic Time - E Labrador |
| America/Montreal |
Eastern Time - Ontario & Quebec - most locations |
| America/Nipigon |
Eastern Time - Ontario & Quebec - places that did not observe DST 1967-1973 |
| America/Thunder_Bay |
Eastern Time - Thunder Bay, Ontario |
| America/Pangnirtung |
Eastern Standard Time - Pangnirtung, Nunavut |
| America/Iqaluit |
Eastern Standard Time - east Nunavut |
| America/Rankin_Inlet |
Eastern Standard Time - central Nunavut |
| America/Winnipeg |
Central Time - Manitoba & west Ontario |
| America/Rainy_River |
Central Time - Rainy River & Fort Frances, Ontario |
| America/Cambridge_Bay |
Central Time - west Nunavut |
| America/Regina |
Central Standard Time - Saskatchewan - most locations |
| America/Swift_Current |
Central Standard Time - Saskatchewan - midwest |
| America/Edmonton |
Mountain Time - Alberta, east British Columbia & west Saskatchewan |
| America/Yellowknife |
Mountain Time - central Northwest Territories |
| America/Inuvik |
Mountain Time - west Northwest Territories |
| America/Dawson_Creek |
Mountain Standard Time - Dawson Creek & Fort Saint John, British Columbia |
| America/Vancouver |
Pacific Time - west British Columbia |
| America/Whitehorse |
Pacific Time - south Yukon |
| America/Dawson |
Pacific Time - north Yukon |
| America/Mexico_City |
Central Time - most locations |
| America/Cancun |
Central Time - Quintana Roo |
| America/Merida |
Central Time - Campeche, Yucatan |
| America/Monterrey |
Central Time - Coahuila, Durango, Nuevo Leon, Tamaulipas |
| America/Mazatlan |
Mountain Time - S Baja, Nayarit, Sinaloa |
| America/Chihuahua |
Mountain Time - Chihuahua |
| America/Hermosillo |
Mountain Standard Time - Sonora |
| America/Tijuana |
Pacific Time |
| America/New_York |
Eastern Time |
| America/Detroit |
Eastern Time - Michigan - most locations |
| America/Louisville |
Eastern Time - Kentucky - Louisville area |
| America/Kentucky/Monticello |
Eastern Time - Kentucky - Wayne County |
| America/Indianapolis |
Eastern Standard Time - Indiana - most locations |
| America/Indiana/Marengo |
Eastern Standard Time - Indiana - Crawford County |
| America/Indiana/Knox |
Eastern Standard Time - Indiana - Starke County |
| America/Indiana/Vevay |
Eastern Standard Time - Indiana - Switzerland County |
| America/Chicago |
Central Time |
| America/Menominee |
Central Time - Michigan - Wisconsin border |
| America/North_Dakota/Center |
Central Time - North Dakota - Oliver County |
| America/Denver |
Mountain Time |
| America/Boise |
Mountain Time - south Idaho & east Oregon |
| America/Shiprock |
Mountain Time - Navajo |
| America/Phoenix |
Mountain Standard Time - Arizona |
| America/Los_Angeles |
Pacific Time |
| America/Anchorage |
Alaska Time |
| America/Juneau |
Alaska Time - Alaska panhandle |
| America/Yakutat |
Alaska Time - Alaska panhandle neck |
| America/Nome |
Alaska Time - west Alaska |
| America/Adak |
Aleutian Islands |