| Brazil | Tocantins · America/Araguaina |
| Brazil | Bahia · America/Bahia |
| Brazil | Para (east), Amapa · America/Belem |
| Brazil | Brazil (northeast: MA, PI, CE, RN, PB) · America/Fortaleza |
| Brazil | Alagoas, Sergipe · America/Maceio |
| Brazil | Pernambuco · America/Recife |
| Brazil | Para (west) · America/Santarem |
| Brazil | Brazil (southeast: GO, DF, MG, ES, RJ, SP, PR, SC, RS) · America/Sao_Paulo |
| Argentina | Buenos Aires (BA, CF) · America/Argentina/Buenos_Aires |
| Argentina | Catamarca (CT), Chubut (CH) · America/Argentina/Catamarca |
| Argentina | Argentina (most areas: CB, CC, CN, ER, FM, MN, SE, SF) · America/Argentina/Cordoba |
| Argentina | Jujuy (JY) · America/Argentina/Jujuy |
| Argentina | La Rioja (LR) · America/Argentina/La_Rioja |
| Argentina | Mendoza (MZ) · America/Argentina/Mendoza |
| Argentina | Santa Cruz (SC) · America/Argentina/Rio_Gallegos |
| Argentina | Salta (SA, LP, NQ, RN) · America/Argentina/Salta |
| Argentina | San Juan (SJ) · America/Argentina/San_Juan |
| Argentina | San Luis (SL) · America/Argentina/San_Luis |
| Argentina | Tucuman (TM) · America/Argentina/Tucuman |
| Argentina | Tierra del Fuego (TF) · America/Argentina/Ushuaia |
| Chile | Aysen Region · America/Coyhaique |
| Chile | Magallanes Region · America/Punta_Arenas |
| Paraguay | whole country · America/Asuncion |
| Uruguay | whole country · America/Montevideo |
| Suriname | whole country · America/Paramaribo |
| French Guiana | whole country · America/Cayenne |
| Falkland Islands | whole country · Atlantic/Stanley |
| Antarctica | Palmer · Antarctica/Palmer |
| Antarctica | Rothera · Antarctica/Rothera |