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 roughly half of North America’s population.
Friday, June 5, 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 roughly half of North America’s 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 currently on EDT
The same hour, city by city.
28 cities · all UTC-04:00
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.
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—currently operate at UTC-04:00 when daylight saving is on.
- Is EDT used the same way everywhere?
- While the offset is the same, some members wait until local clocks read 02:00 to spring forward, so “noon in EDT” still feels like noon in each city even if the underlying civil time differs.
- When does EDT period typically end each year?
- In this region, clocks stay at the EDT offset until a date in early-to-mid November; after the next transition in November 2026, most member zones will return to their standard-time offset.
- Why do some US states have several IDs listed?
- Indiana historically had mixed time rules; several counties keep their own zone entries to handle past DST choices and local exceptions.
- Does EDT affect US national election night coverage?
- Yes—polls in EDT states close one hour later than Central, so much of the Eastern seaboard reports results while Mountain and Pacific polls have already begun counting.
- Can Caribbean countries end DST earlier or later?
- Absolutely. Haiti, the Bahamas, and other Caribbean members sometimes pick different change dates than the US or Canada, briefly creating one-hour splits within the EDT family.
- 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”?
- Functionally yes—once daylight saving kicks in, everything labeled EDT is the same UTC offset and follows broadly similar spring-forward and fall-back timing, even if DST is optional on extremely local scales.
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.
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