Time zone · Americas
EDT
Eastern Daylight Time
Eastern Daylight Time connects major US cities, Canadian provinces, and Caribbean territories under the same UTC-04:00 offset while clocks are sprung forward each spring. It shapes the shared rhythm of workdays and prime-time nights for nearly half of the US population.
Wednesday, October 14, 2026
Current offset
UTC-04:00
Daylight · EDT
Daylight saving
Active
Reverts 1 Nov 2026
IANA zones
15
15 observe DST, 0 don't
DST offset
—
No summer variant
About EDT
Standard time, with a summer shift.
Eastern Daylight Time connects major US cities, Canadian provinces, and Caribbean territories under the same UTC-04:00 offset while clocks are sprung forward each spring. It shapes the shared rhythm of workdays and prime-time nights for nearly half of the US population.
IANA zones · the technical identifiers
The 15 zones that resolve to EDT.
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 across EDT
Local time, city by city.
28 cities
Where EDT is used
5 countries.
Same offset · UTC-04:00
Other zones at UTC-04:00 right now.
These named zones share EDT's offset today. When daylight saving rules differ, they drift apart for part of the year.
Convert
EDT to the world's clocks.
Frequently asked questions
Common questions about EDT, daylight saving, and how to handle it in software. Can't find what you need? Email [email protected].
- How many places share EDT in this region?
- Fifteen member zones—from Detroit and Indianapolis to Grand Turk and Port-au-Prince—operate at UTC-04:00 when daylight saving is on.
- Is EDT used the same way everywhere?
- Yes. Every place in this group moves its clocks at 02:00 local time on the same two dates, the second Sunday in March and the first Sunday in November, so they stay in step all year.
- When does EDT period typically end each year?
- In this region, EDT runs from the second Sunday in March to the first Sunday in November, when member zones fall back to Eastern Standard Time (UTC-05:00).
- Why are several Indiana locations listed separately?
- Indiana historically had mixed time rules; several counties keep their own zone entries to handle past DST choices and local exceptions.
- Can Caribbean countries end DST earlier or later?
- They can, because each government decides for itself, but today they follow the US dates. In the past, Haiti skipped daylight saving time in 1998–2004, 2007–2011 and 2016, and Turks and Caicos stayed on UTC-04:00 from March 2015 to November 2018.
- Does EDT make much difference for sunrise?
- During deep EDT, Detroit sees sunrise as early as 06:00 and sunset as late as 21:00, giving long summer evenings for local schedules and cross-border commerce.
- How do I keep my meetings straight across borders?
- Use the US or Caribbean city name (e.g., Detroit or Grand Turk) in meeting tools, and rely on the zone detection—client clocks everywhere will stay synchronized for EDT.
- Is EDT the same as “Eastern US summer time”?
- Yes. EDT is the summer clock of the Eastern time zone, UTC-04:00, used from the second Sunday in March to the first Sunday in November.
Source: IANA tzdb2026d · Reviewed
Free · Developer API
This time zone, as JSON.
Its defining offset, DST status and member counts, from one endpoint.
Also in the API: time zones by coordinates, conversions that flag daylight saving gaps, and abbreviations decoded.
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