IANA tz database · zone identifier
America/Guayaquil
The IANA tz database identifier for Ecuador Time in Ecuador. Store this string — not the abbreviation, not the offset — and your timestamps stay correct forever.
Current offset
UTC-05:00
same year-round
Abbreviation
-05
tzdb uses numeric abbreviations here
DST behaviour
None
one offset all year
Using this identifier
The string to put in your code.
America/Guayaquil is the identifier to use in code and config for this region. Every modern language, database, and OS resolves it through the same tz database, so the examples here behave identically everywhere.
Avoid storing -05 or -05:00 — abbreviations are ambiguous and fixed offsets can't follow rule changes.
Offset & DST behaviour
33 years.
America/Guayaquil has kept UTC-05:00 year-round since 4 February 1993 — no daylight saving and no offset changes on record since. It is among the most stable identifiers in the database.
Every offset this zone has kept
Keeping this offset since
4 February 1993
Next transition
None scheduled
no DST rules exist for this zone
Safe to assume
Local = UTC − 5h, always
…but store the identifier anyway
Technical record
The database entry, in full.
source: IANA tz database · release 2026d
Where it applies
One of Ecuador's 2 zones.
Looking for travel-friendly info? See Guayaquil or Ecuador Time.
Related identifiers
Nearby in the database.
Same offset · UTC-05:00
other zones keeping this offset right now
Frequently asked questions
Answers specific to this identifier — generated from the database record. Can't find what you need? Email [email protected].
- What UTC offset is America/Guayaquil?
- America/Guayaquil is UTC-05:00, year-round. The offset never changes because the zone does not observe daylight saving time.
- Does America/Guayaquil observe daylight saving time?
- No. America/Guayaquil stays on UTC-05:00 all year, as it has since 4 February 1993.
- Which country uses America/Guayaquil?
- Ecuador. It is one of 2 IANA zones covering the country.
- Is America/Guayaquil the same as ECUADO?
- America/Guayaquil is one of the IANA zones that keeps Ecuador Time (ECUADO). Use America/Guayaquil in software — ECUADO is a human-friendly label, not a valid identifier.
Free · Developer API
This zone, as JSON.
Its live offset, abbreviation and DST status, plus its coordinates and country, from one endpoint.
Also in the API: time zones by coordinates, conversions that flag daylight saving gaps, and abbreviations decoded.
Moving off WorldTimeAPI? Our drop-in replacement needs no key.