Current Time in America/Santarem Time Zone
IANA Name: America/Santarem
Standard Offset: UTC −03:00
Daylight Saving: No
Currently Observing DST: No ❌
America/Santarem Time Zone: Brazil's Amazonian Constant Offset
The America/Santarem time zone covers a portion of Brazil's Pará state in the Amazon basin, anchored by the city of Santarém. It uses a fixed offset of UTC-03:00 year-round, with no daylight saving time adjustments. This zone is one of several Brazilian time zones that share the same standard offset but differ in historical observance and geographic application.
Geographic Scope and Usage
America/Santarem applies to the western part of Pará state, including the city of Santarém and surrounding municipalities. It is one of four Brazilian time zones, alongside America/Araguaina (covering eastern Pará and other states), America/Fortaleza (coastal northeast), and America/Manaus (western Amazon). The zone is used exclusively in Brazil and does not extend to any other country.
Offset and Abbreviation
The standard offset is UTC-03:00, meaning local time is three hours behind Coordinated Universal Time. The abbreviation for this offset is -03, which is used universally in Brazil for this zone. Unlike some regions that use seasonal abbreviations (e.g., BRT for Brasília Time during standard time and BRST for summer), America/Santarem remains at -03 all year.
No Daylight Saving Time
Brazil abolished daylight saving time nationwide in 2019. Prior to that, many Brazilian zones observed DST, but America/Santarem was one of the zones that did not participate even before the ban. The region's proximity to the equator means day length varies little across the year, making DST unnecessary. As a result, the offset is constant: UTC-03:00 every day of the year.
Main Cities and Countries
The primary city is Santarém (population ~300,000), a major port on the Tapajós River near its confluence with the Amazon. Other towns include Alter do Chão, known for its freshwater beaches, and Itaituba. The zone covers only Brazil; no other country uses America/Santarem.
Business Hours and Scheduling
America/Santarem is three hours behind UTC. For example, when it is noon in Santarém, it is 15:00 UTC, 10:00 EST (New York), 07:00 PST (Los Angeles), and 16:00 CET (Paris). During the European summer (when CET is UTC+02:00), the difference to Paris is 5 hours (Santarém behind). For calls with North America, note that US Eastern Time is UTC-05:00 (or UTC-04:00 during DST), so Santarém is 1 or 2 hours ahead of New York depending on the season. With no DST changes, scheduling is simplified: the offset from Santarém to any other fixed zone remains constant all year.
Other Zones at the Same Offset
Several other IANA zones share the UTC-03:00 offset: America/Araguaina (eastern Pará, Tocantins), America/Argentina/Buenos_Aires, America/Argentina/Catamarca, America/Argentina/Cordoba, America/Argentina/Jujuy, America/Argentina/La_Rioja, America/Argentina/Mendoza, America/Argentina/Rio_Gallegos, America/Argentina/Salta, America/Argentina/San_Juan, America/Argentina/San_Luis, America/Argentina/Tucuman. However, these zones may have historically observed DST differently or have different standard offsets during certain periods. For current timekeeping, they all align at -03.
Frequently Asked Questions
Does America/Santarem observe daylight saving time?
No. America/Santarem has never observed daylight saving time, and Brazil abolished DST nationwide in 2019. The offset remains UTC-03:00 all year.
What is the time difference between Santarém and New York?
Santarém (UTC-03:00) is 1 hour ahead of New York during Eastern Standard Time (UTC-05:00) and 2 hours ahead during Eastern Daylight Time (UTC-04:00). Since Santarém does not change, the difference varies seasonally.
Is America/Santarem the same as Brasília Time?
No. Brasília Time (America/Sao_Paulo) is UTC-03:00 during standard time but observes DST, shifting to UTC-02:00 in summer. America/Santarem stays at -03 year-round. During Brasília's DST period, Santarém is one hour behind Brasília.
What other Brazilian states use America/Santarem?
Only the western part of Pará state uses this zone. The eastern part of Pará uses America/Araguaina (also UTC-03:00 but historically different DST rules). No other states are included.
Why is Santarém in a different time zone from the rest of Pará?
Brazil's time zones are based on longitudinal divisions. Western Pará lies further west, but the government chose to keep it at UTC-03:00 rather than UTC-04:00 (America/Manaus) to align with Brasília for economic and administrative reasons. The zone America/Araguaina covers eastern Pará at the same offset but with a different IANA identifier due to historical DST differences.
How do I convert Santarém time to London time?
Santarém is UTC-03:00. London is UTC+00:00 in winter (GMT) and UTC+01:00 in summer (BST). So Santarém is 3 hours behind London during GMT and 4 hours behind during BST.