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Continental South America is divided among 4 or 5 time zones, depending on the time of year. In addition to those, some of the islands associated with South America use time zones that the mainland does not.

After each offset from Universal Time below are the time zone names and abbreviations it goes by, the countries (if not obvious from the name), and when it is in effect...

UTC - 6 hours:


UTC - 5 hours:
  • Easter Island Summer Time (EASST); on Easter Island, Chile; year-'round
  • Colombia Time (COT); year-'round
  • Ecuador Time (ECT); continental Ecuador; year-'round
  • Peru Time (PET); year-'round
  • Acre Time (ACT; BRT-2 locally); in part of Brazil; year-'round

UTC - 4.5 hours:
  • Venezuelan Standard Time (VET; HLV locally); year-'round

UTC - 4 hours:
  • Guyana Time (GYT); year-'round
  • Amazon Time (ANT; BRT-1 locally); in part of Brazil; year-'round in some places, ~ 18 Feb to ~ 18 Oct in 2 states
  • Bolivia Time (BOT); year-'round
  • Paraguay Time (PYT); ~ 24 Mar to ~ 4 Oct

UTC - 3 hours:
  • Paraguay Summer Time (PYST); ~4 Oct to ~ 24 Mar
  • Suriname Time (SRT); year-'round
  • French Guiana Time (GFT); year-'round
  • Amazon Summer Time (ANST); in 2 Brazilian states; ~ 18 Oct to ~ 18 Feb
  • Brasilia Time (BRT); in part of Brazil; year-'round in some places, ~ 18 Feb to ~ 18 Oct in some places
  • Chile Summer Time (CLST); year-'round
  • Argentina Time (ART); year-'round
  • Uruguay Time (UYT); ~ 11 Mar to ~ 4 Oct
  • Falkland Islands Summer Time (FKST); year-'round

UTC - 2 hours:
  • Brasilia Summer Time (BRST); in part of Brazil; ~ 18 Oct to ~ 18 Feb
  • Fernando de Noronha Time (FNT; BRT+1 locally); on Brazil's Fernando de Noronha Archipelago; year-'round
  • Uruguay Summer Time (UYST); ~ 4 Oct to ~ 11 Mar

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10y ago

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