EST to EDT
+1hEST
ESTSOURCEEDT
EDTGreen rows indicate typical business hours (9 AM - 5 PM)
EST and EDT on the World Map
The map below highlights the EST (Eastern Standard Time) and EDT (Eastern Daylight Time) timezone regions across the globe.
EST – Eastern Standard Time
UTC-05:00Eastern Standard Time (EST) is the time zone for the eastern United States and Canada, 5 hours behind UTC.
- •EST is the most widely used time zone in the United States by population.
- •The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
- •23 US states are fully or partially in the Eastern Time Zone.
- •EST was established by the Standard Time Act of 1918.
- •Over 47% of the US population lives in the Eastern Time Zone.
EDT – Eastern Daylight Time
UTC-04:00Eastern Daylight Time (EDT) is the daylight saving time observed in the Eastern Time Zone, 4 hours behind UTC.
- •EDT is observed from the second Sunday of March to the first Sunday of November.
- •During EDT, the US East Coast is only 4 hours behind London (instead of 5).
- •Not all EST locations switch to EDT – Panama and Jamaica stay on EST year-round.
Comparing Time Zones: EST and EDT
EST runs on Eastern Standard Time (EST) at UTC-05:00. EDT runs on Eastern Daylight Time (EDT) at UTC-04:00. That puts EST 1 hour ahead of EDT — a difference of +1h at the current offsets.
In practice, when it is 9:00 AM in EST it is 10:00 AM in EDT. Midnight in EST is 1:00 AM in EDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
EST to EDT time conversion table
| EST (EST) | EDT (EDT) | Day |
|---|---|---|
| 12:00 AM | 1:00 AM | same day |
| 6:00 AM | 7:00 AM | same day |
| 7:00 AM | 8:00 AM | same day |
| 8:00 AM | 9:00 AM | same day |
| 9:00 AM | 10:00 AM | same day |
| 12:00 PM | 1:00 PM | same day |
| 3:00 PM | 4:00 PM | same day |
| 5:00 PM | 6:00 PM | same day |
| 6:00 PM | 7:00 PM | same day |
| 9:00 PM | 10:00 PM | same day |
Why people convert EST to EDT time
- Scheduling a call from EST to EDT: a 10:00 AM start in EST lands at 11:00 AM in EDT, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both EST and EDT are inside the 9-to-5 working day between 9:00 AM and 4:00 PM EST time (10:00 AM–5:00 PM EDT). That is roughly 7 hours of usable overlap.
- Coordinating a EST-based team with EDT contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM EST" is unambiguous; "3 PM" across a +1h gap is not.
- Block 9:00 AM–4:00 PM EST as the recurring meeting window if you work primarily from EST and need EDT colleagues present.
About EST (Eastern Standard Time)
Eastern Standard Time (EST) is observed during the winter months in the eastern part of North America. It covers 23 US states and parts of Canada including Ontario and Quebec. EST is the most populous time zone in the United States, home to major financial centers like New York City and global organizations headquartered in Washington D.C. During daylight saving time (March–November), clocks shift to Eastern Daylight Time (EDT, UTC-04:00). The time zone also covers parts of the Caribbean and Central America including Panama, Jamaica, and the Cayman Islands.
About EDT (Eastern Daylight Time)
Eastern Daylight Time (EDT) is used during the summer months (second Sunday of March to the first Sunday of November) in the Eastern Time Zone. During EDT, clocks are advanced by one hour to take advantage of longer daylight hours. Not all locations in the Eastern Time Zone observe DST – Panama, Jamaica, and most of the Caribbean remain on EST year-round.
Best time to call between EST and EDT
Both EST and EDT sit inside the 9 AM – 5 PM working day between 9:00 AM–4:00 PM EST, which is 10:00 AM–5:00 PM EDT. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
EST and EDT share 7 hours of working-hours overlap (9:00 AM–4:00 PM EST), so scheduling a live meeting is straightforward.
EST is 1 hour ahead of EDT (EST UTC-05:00 → EDT UTC-04:00). The shared working window is 9:00 AM–4:00 PM EST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
EST
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
Clocks fall back on Sun, Nov 1, 2026
EDT
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
Clocks fall back on Sun, Nov 1, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between EST and EDT?
EST (EST, UTC-05:00) is 1 hour ahead of EDT (EDT, UTC-04:00). The gap is currently +1h.
How do I convert EST time to EDT time?
Add +1h to EST local time. For example, 9:00 AM in EST is 10:00 AM in EDT.
What time is it in EDT right now?
EDT uses EDT at UTC-04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +1h offset from EST.
What is the best time to call EDT from EST?
Call between 9:00 AM and 4:00 PM EST — that maps to 10:00 AM–5:00 PM EDT and keeps both parties inside the working day.
Which is ahead, EST or EDT?
EST is 1 hour ahead of EDT. When it is 12:00 PM in EST it is 1:00 PM in EDT.
Does daylight saving time affect the EST–EDT difference?
Neither zone observes daylight saving time, so the +1h offset between EST and EDT is fixed all year.
Which other cities share EST's time zone?
EST also covers New York City, Washington D.C., Miami, Toronto, Philadelphia, Atlanta, Boston, Montreal and 8 more.
Which countries use EST, EST's zone?
EST is used in United States (Eastern), Canada (Ontario, Quebec), Mexico (Quintana Roo), Panama, Jamaica, Cayman Islands, Haiti, Bahamas and 4 more.
Is there a day difference between EST and EDT?
Not normally. The +1h gap only pushes the date over for late-evening times.
What is the time difference between EST and EDT?
EDT is +1h from EST.
What timezone is EST in?
EST operates on its local timezone.
What timezone is EDT in?
EDT operates on its local timezone.
Which countries use EST (Eastern Standard Time)?
EST is used in United States (Eastern), Canada (Ontario, Quebec), Mexico (Quintana Roo), Panama, Jamaica, Cayman Islands, and 6 more countries.
Does EST observe daylight saving time?
Yes, EST switches to EDT during summer months.
What are some interesting facts about EST?
EST is the most widely used time zone in the United States by population. The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
Which cities are in the EDT timezone?
Major cities in the EDT timezone include New York City, Washington D.C., Toronto, Miami, Philadelphia, Atlanta, Boston, Montreal.
What is the UTC offset for EDT?
Eastern Daylight Time (EDT) is at UTC-04:00. During daylight saving time, it shifts to EST.
What should I know about the EDT timezone?
EDT is observed from the second Sunday of March to the first Sunday of November. During EDT, the US East Coast is only 4 hours behind London (instead of 5).
When is it midnight in EST, what time is it in EDT?
When it is 12:00 AM (midnight) in EST (EST), it is +1h later in EDT (EDT).
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See every conversion from EST →·See every conversion from EDT →