UTC to EST / EDT Converter

Free

Convert UTC to Eastern Time (EST or EDT) instantly. Shows current DST status, handles the UTC-5 / UTC-4 switch automatically. Free.

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Settings guide

UTC-5 vs UTC-4 — which applies right now?

DST in the US is:

  • ·Ends (EST, UTC-5) begins: First Sunday in November at 2:00 AM — clocks "fall back"
  • ·DST (EDT, UTC-4) begins: Second Sunday in March at 2:00 AM — clocks "spring forward"

So: March to November = EDT (UTC-4). November to March = EST (UTC-5).

Converting UTC log timestamps to Eastern Time:

  • ·UTC log timestamp: 2025-07-15T18:30:00Z → July = EDT → subtract 4 hours → 14:30 ET (2:30 PM)
  • ·UTC log timestamp: 2025-01-10T18:30:00Z → January = EST → subtract 5 hours → 13:30 ET (1:30 PM)

ISO 8601 format: UTC timestamps in ISO 8601 end with Z (for Zulu time, another name for UTC) or with +00:00. Both indicate UTC.

For recurring meeting scheduling: If you set a recurring meeting at a specific Eastern Time, the UTC equivalent will shift by one hour when DST transitions. Update calendar invites or cron jobs accordingly.

Format comparison

EST vs EDT vs ET: "ET" (Eastern Time) refers to whichever offset is currently in effect. "EST" specifically means UTC-5 (winter). "EDT" specifically means UTC-4 (summer). When someone says "the meeting is at 3pm EST" in July, they almost certainly mean EDT, but they are using the abbreviation incorrectly. The converter shows which offset is in effect for the specific date you enter.

UTC vs GMT: GMT (Greenwich Mean Time) and UTC differ by fractions of a second due to atomic clock calibration — for practical purposes, UTC and GMT can be treated as identical for time zone conversion. UTC+0 and GMT+0 are functionally the same.

How it works

1

Enter the UTC time and date

Type the hour, minute, and date in UTC. If you have an ISO 8601 timestamp (ending in Z), enter the time portion.

2

See Eastern Time instantly

The converter shows the Eastern Time equivalent, the correct offset (UTC-5 or UTC-4), and whether DST is in effect on that date.

3

Copy or use the result

The converted time displays in both 12-hour and 24-hour formats. Copy either format to paste into a calendar, email, or log.

About this format

UTC to Eastern Time is the most commonly needed time zone conversion for software developers, remote teams, and anyone working with US-based systems. UTC is the reference standard used in logs, APIs, databases, and international schedules. Eastern Time (ET) is the US East Coast zone used by New York, Washington DC, Boston, Atlanta, Miami, and the major US financial markets.

The complication is Daylight Saving Time. During winter (roughly November to March), Eastern Time is UTC-5 (EST — Eastern Standard Time). During summer (roughly March to November), it is UTC-4 (EDT — Eastern Daylight Time). The offset changes twice a year on specific Sundays. A static formula ("subtract 5 hours") will give wrong answers for part of the year.

This converter handles the EST/EDT switch automatically. Enter a UTC time and date, and the result shows the correct Eastern Time for that specific date — UTC-5 or UTC-4 depending on whether DST is in effect.

For developers: this is also useful for converting Unix timestamps and ISO 8601 UTC timestamps (ending in Z) to Eastern Time for display or logging purposes.

Frequently asked questions

Is Eastern Time UTC-5 or UTC-4?+
It depends on the time of year. Eastern Standard Time (EST) is UTC-5 and is in effect from the first Sunday of November to the second Sunday of March. Eastern Daylight Time (EDT) is UTC-4 and is in effect from the second Sunday of March to the first Sunday of November. Most of the year (approximately eight months) ET is UTC-4 (EDT). The winter period (approximately four months) is UTC-5 (EST).
When exactly does Eastern Time switch between EST and EDT?+
The US DST transition happens at 2:00 AM local time on specific Sundays. Spring forward to EDT: 2:00 AM on the second Sunday of March (clocks jump to 3:00 AM — one hour is skipped). Fall back to EST: 2:00 AM on the first Sunday of November (clocks repeat 1:00 AM — one hour occurs twice). The exact calendar dates vary by year. For 2025: March 9 (spring forward) and November 2 (fall back).
How do I convert a Unix timestamp to Eastern Time?+
A Unix timestamp is seconds since 1970-01-01T00:00:00Z (UTC). Convert it to a UTC datetime first, then apply the EST or EDT offset based on the date. For example: Unix timestamp 1736000000 → UTC: 2025-01-04 20:13:20 → January = EST (UTC-5) → Eastern Time: 2025-01-04 15:13:20 ET. Programming languages have built-in functions for this: JavaScript's Date object, Python's datetime with pytz, or Java's ZonedDateTime.
Do all US states observe Eastern Daylight Time?+
Not all states. Indiana was historically inconsistent but now observes EDT. The US states of Arizona (except the Navajo Nation) and Hawaii do not observe DST at all — they remain on a fixed UTC offset year-round. Within the Eastern time zone boundary, all included states follow the EST/EDT transition schedule. If someone tells you a time in Eastern Time from Indiana, they are on the standard EST/EDT schedule.
My calendar shows the wrong Eastern Time after a DST transition — why?+
Calendar events set before a DST transition may not update correctly if the event was specified as 'floating' (without a time zone reference) or if the calendar software stored the UTC equivalent at creation time. For example, if you created a 9am ET recurring meeting in winter (when ET = UTC-14:00), after the spring transition to EDT (UTC-4) the meeting may appear at 10am if the calendar stored it as 14:00 UTC rather than as '9am Eastern Time.' Update recurring meeting invites after DST transitions when this occurs.

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