Current Time in America/Eirunepe Time Zone
IANA Name: America/Eirunepe
Standard Offset: UTC −05:00
Daylight Saving: No
Currently Observing DST: No ❌
America/Eirunepe: Brazil’s Westernmost Time Zone
America/Eirunepe is a time zone observed in the far western part of Brazil, centered on the city of Eirunepe in the state of Amazonas. It operates at a fixed offset of UTC-05:00 year-round, with no daylight saving time adjustments. This zone covers a sparsely populated region of the Amazon rainforest and is one of four Brazilian time zones.
Geographic Scope and Usage
America/Eirunepe applies to a small area in the extreme west of Brazil, including the municipality of Eirunepe and surrounding parts of Amazonas state. The zone is used only in Brazil; no other country observes this specific IANA zone. It is the westernmost Brazilian time zone, lying at the border with Peru and Colombia.
Offset and Abbreviation
The standard offset is UTC-05:00, meaning local time is five hours behind Coordinated Universal Time. The common abbreviation for this offset is ACT (Acre Time), though historically it was also known as Amazon Time (Western). Unlike many zones, America/Eirunepe does not use a daylight saving abbreviation because it never shifts.
Daylight Saving Time: None
Brazil abolished daylight saving time nationwide in 2019, but America/Eirunepe had already stopped observing it earlier. The zone has been at a constant UTC-05:00 for decades. There is no spring-forward or fall-back, making it one of the most stable time zones in the Americas.
Key Cities and Population
The anchor city is Eirunepe, with a population of around 35,000. Other towns in the zone include Ipixuna, Guajará, and Atalaia do Norte. The entire region is remote and heavily forested, with few major urban centers.
Business Hours and Scheduling
For scheduling calls with America/Eirunepe, note that it is 5 hours behind UTC. Compared to New York (UTC-05:00 during standard time, UTC-04:00 in summer), the zone is the same as Eastern Standard Time but one hour behind Eastern Daylight Time. For London (UTC+00:00), Eirunepe is 5 hours behind. A typical workday (9:00-17:00 ACT) overlaps with US East Coast morning (9:00-13:00 EST) and early afternoon (10:00-14:00 EDT).
Relationship to Other UTC-05:00 Zones
Several other IANA zones share the same standard offset, including America/Bogota (Colombia), America/Guayaquil (Ecuador), and America/Cancun (Mexico). However, many of these observe daylight saving time, creating temporary differences. For example, during summer, Bogota remains at UTC-05:00 while New York shifts to UTC-04:00, so Eirunepe matches Bogota year-round but lags New York by one hour in summer.
Frequently Asked Questions
Does America/Eirunepe observe daylight saving time?
No, America/Eirunepe does not observe daylight saving time. The offset remains at UTC-05:00 all year.
What is the time difference between Eirunepe and New York?
When New York is on Eastern Standard Time (UTC-05:00), they are the same. During Eastern Daylight Time (UTC-04:00), Eirunepe is one hour behind New York.
Which Brazilian states use America/Eirunepe?
Only the western part of Amazonas state, including the municipality of Eirunepe, uses this zone. It does not cover all of Amazonas.
Is America/Eirunepe the same as Acre Time?
Yes, the abbreviation ACT (Acre Time) is commonly used for UTC-05:00 in this region, though Acre state itself now uses UTC-05:00 as well.
What major cities are in the America/Eirunepe zone?
The main city is Eirunepe. Other towns include Ipixuna, Guajará, and Atalaia do Norte.
How do I convert Eirunepe time to London time?
Eirunepe is 5 hours behind London. For example, 12:00 noon in Eirunepe is 17:00 in London.