EST — Eastern Standard Time
EST is Eastern Standard Time, 5 hours behind UTC. It is a fixed offset: unlike a time zone, it does not change with the season — the zones that use it switch to a different abbreviation instead.
Current time in EST
02:46
Sunday, 2 August 2026
EST = UTC-5 · 5 hours behind UTC
Shown for 2 Aug 2026 07:46 UTC. The clock goes live as soon as scripts load.
UTC offset
UTC-5
Type
Standard time
Seasonal counterpart
EDT
The letters the same zones use for the other half of the year
Meanings
1
Unambiguous
Is EST in force right now?
A zone only carries this abbreviation for part of the year. This is which of them were on it at 2 Aug 2026 07:46 UTC; the list is re-derived against your own clock when scripts load.
On EST now
- America/Cancun — Cancun
- America/Panama — Panama City
- America/Jamaica — Kingston
Using a different abbreviation
- America/New_York — on EDT (UTC-4)
- America/Toronto — on EDT (UTC-4)
- America/Indiana/Indianapolis — on EDT (UTC-4)
- America/Detroit — on EDT (UTC-4)
EST alternates with EDT across the year.
Writing “EST” for a date in the other half of the year is the most common time zone mistake in meeting invitations.
Convert EST to other time zones
City clocks reflect whatever their zone is doing; where a city observes daylight saving time, its difference from EST changes twice a year. Use the time zone converter for a specific date.
Time zones and cities that use EST
Eastern Standard Time · UTC-5
America/New_York
United States · changes clocks (EST ↔ EDT)
Miami New York Washington, D.C. Atlanta Baltimore Boston Buffalo Charlotte Cincinnati Cleveland Columbus Jacksonville
Why EST is not an identifier
EST is shorthand, not a standard. There is no registry of time zone abbreviations, no authority that assigns them, and nothing preventing two regions from adopting the same three letters — which is what makes codes like IST and CST unusable without context.
For anything a machine will read — a calendar invitation, a database column, an API response — use the IANA identifier of the zone (America/New_York, for example) or an explicit UTC offset alongside the date. The identifier survives a change in the law; EST and its 5 hours offset do not.
Abbreviations on the same clock
Frequently asked questions
What does EST stand for?
EST stands for Eastern Standard Time. It is 5 hours behind UTC, written UTC-5.
What is EST in UTC?
EST is UTC-5. To convert an EST time to UTC, add 5 hours.
What is the difference between EST and EDT?
EST is the standard-time form; EDT is what those same zones use during daylight saving time, one hour ahead. A summer date written "EST" is usually a mistake for EDT.
Which time zone should I use instead of EST?
Use an IANA identifier — America/New_York, America/Toronto and America/Indiana/Indianapolis and 4 more for Eastern Standard Time — or state the UTC offset with the date. Abbreviations are not identifiers: they are not unique, they are not registered anywhere, and half of them change with the season. Calendar software resolves this automatically when you pick a city rather than typing letters.