What is the difference between EDT and EST?

EDT (Eastern Daylight Time) is UTC-4, used during daylight saving time from the 2nd Sunday of March to the 1st Sunday of November. EST (Eastern Standard Time) is UTC-5, used during standard time from November to March. EDT is 1 hour ahead of EST.

What does EDT stand for?

EDT stands for Eastern Daylight Time. It is the daylight saving time offset for the Eastern Time Zone in the US and Canada, at UTC-4.

What does EST stand for?

EST stands for Eastern Standard Time. It is the standard time offset for the Eastern Time Zone at UTC-5, used during winter months when daylight saving time is not in effect.

When does EDT start and end?

In the United States, EDT starts on the 2nd Sunday of March at 2:00 AM (clocks spring forward to 3:00 AM) and ends on the 1st Sunday of November at 2:00 AM (clocks fall back to 1:00 AM).

Are EDT and EST ever active at the same time?

Not in the same location. A given US Eastern Time Zone location is either on EDT or EST, never both. However, places like Panama and Jamaica use EST year-round (UTC-5), while US locations use EDT (UTC-4) in summer — creating a real 1-hour difference between them.

Is New York on EDT or EST right now?

New York follows US DST rules: EDT (UTC-4) from the 2nd Sunday of March to the 1st Sunday of November, and EST (UTC-5) for the rest of the year. Check the live clocks above for the current status.

Which states use EDT?

Most US states in the Eastern Time Zone observe EDT during summer, including New York, Florida, Georgia, Ohio, Pennsylvania, Virginia, Massachusetts, and others. Arizona's Eastern counties do NOT observe DST. Indiana mostly follows EDT since 2006.

Do any places stay on EST year-round?

Yes. Panama, Jamaica, the Cayman Islands, Cancún (Mexico), and parts of Ecuador use EST (UTC-5) year-round without observing daylight saving time.

How do I convert EDT to EST?

Subtract 1 hour. For example, 3:00 PM EDT = 2:00 PM EST. This is because EDT (UTC-4) is 1 hour ahead of EST (UTC-5).

Daylight saving time was introduced to make better use of daylight during longer summer days. Clocks spring forward in March to shift an hour of daylight from morning to evening, and fall back in November to return to standard time.

EDT to EST Converter – Difference Between EDT and EST Explained

Understanding EDT vs EST

EDT and EST are both offsets within the Eastern Time Zone, but they are not interchangeable. The key difference is daylight saving time.

EDT — Eastern Daylight Time (UTC-4)

EDT is active during summer months, from the 2nd Sunday of March to the 1st Sunday of November. When clocks "spring forward" at 2:00 AM, the Eastern Time Zone switches from EST to EDT, gaining one hour of evening daylight. During EDT, the offset from UTC is -4 hours.

EST — Eastern Standard Time (UTC-5)

EST is the "default" time for the Eastern Time Zone, active during winter months from November to March. When clocks "fall back" at 2:00 AM, the zone returns to EST. The offset from UTC is -5 hours.

The Conversion Rule

Since EDT (UTC-4) is 1 hour ahead of EST (UTC-5), to convert:

EDT → EST: Subtract 1 hour (3:00 PM EDT = 2:00 PM EST)
EST → EDT: Add 1 hour (2:00 PM EST = 3:00 PM EDT)

When Is This Conversion Useful?

This conversion matters when coordinating between locations that observe DST (like New York) and those that use EST year-round (like Panama, Jamaica, or Cancún). During summer, New York is on EDT (UTC-4) while Panama remains on EST (UTC-5), creating a real 1-hour time difference between them.

Related Tools

EST to GMT Converter — Eastern to Greenwich
GMT to EST Converter — Greenwich to Eastern
PST to EST Converter — Pacific to Eastern
London to EST Converter — UK to US Eastern
New York Time Now — Live Eastern Time