Time zone · Americas
EST
Eastern Standard Time
Eastern Standard Time (EST) is the time zone that keeps much of eastern North America—from Toronto to Jamaica to Panama—on the same page, ticking in sync for business hours, live broadcasts, and late-night calls. Most of the region springs forward into daylight saving time, but a handful of holdouts like Atikokan (our representative) and Cancun stay put at standard time year-round.
Saturday, May 30, 2026
Current offset
UTC-05:00
Standard · EST
Daylight saving
Not observed
Year-round standard time
IANA zones
5
None observe daylight saving
DST offset
—
No summer variant
About EST
A fixed, year-round offset.
Eastern Standard Time (EST) is the time zone that keeps much of eastern North America—from Toronto to Jamaica to Panama—on the same page, ticking in sync for business hours, live broadcasts, and late-night calls. Most of the region springs forward into daylight saving time, but a handful of holdouts like Atikokan (our representative) and Cancun stay put at standard time year-round.
IANA zones · the technical identifiers
The 5 zones that resolve to EST.
For software, always store the IANA identifier — never the abbreviation alone. The database keeps these zones distinct because their rules can, and historically did, diverge.
Cities currently on EST
The same hour, city by city.
3 cities · all UTC-05:00
Where EST is used
5 countries.
Same offset · UTC-05:00
Other zones at UTC-05:00 right now.
These named zones share EST's offset today. When daylight saving rules differ, they drift apart for part of the year.
Frequently asked questions
Common questions about EST, daylight saving, and how to handle it in software. Can't find what you need? Email [email protected].
- How many places actually sit in EST right now?
- Only five of the 20 member zones are in EST at the moment—Atikokan, Cancun, Cayman, Jamaica, and Panama; the other 15 have already flipped to Eastern Daylight Time (EDT).
- Why does Atikokan never switch to daylight saving time?
- Atikokan opted out of DST decades ago; it stays on UTC-05:00 all year, so its clocks never change and it never shows EDT.
- Does the whole region change clocks on the same day?
- Almost. Most zones that observe DST jump forward on the second Sunday in March and fall back on the first Sunday in November, but the exact moment differs by location because of their longitude.
- Which countries have zones in both EST and EDT?
- The United States, Canada, Mexico, and the Turks and Caicos Islands all have at least one zone that shifts between EST and another zone that stays on EST.
- Is Mexico fully on EST?
- No. Only Cancun and nearby Quintana Roo sit on EST; most of Mexico City and central Mexico use a different time zone (America/Mexico_City) and their own daylight saving rules.
- Do Caribbean islands in this region change their clocks?
- Most don't—the Cayman Islands, Jamaica, and Panama keep standard time all year, syncing with EST permanently without daylight saving adjustments.
- What's unique about this region's mix of DST observance?
- Out of the 20 member zones, 15 observe DST and 15 are currently in DST—meaning nearly every DST participant has transitioned, while a few permanent standard-time zones remain stable.
- Why doesn't this region have a known next transition?
- Because Atikokan—the representative zone—doesn't observe DST, there's no scheduled clock change; any next transition data would need to come from a DST-observing zone.
Free · Developer API
Time, as JSON.
Every IANA time zone with live offsets, DST status, and the countries and cities that use them — clean, dependable JSON. Sign up free and get an API key in seconds.
countries, cities, convert, DST transitions coming next.
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