Convert EST to GMT

Convert EST to GMT – Free Time Zone Difference Converter

Convert EST ↔ GMT

Drag the big sliders with hour tick marks. Add extra time zones, copy a share link, or add to calendar.

Eastern Time Mode

EST is always UTC−5. EDT (summer) is UTC−4.

Date (based on Eastern Time)

Eastern Time (EST)

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24‑hour: —

Greenwich Mean Time (GMT/UTC)

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24‑hour: —

Show 24‑hour conversion table

EST/EDT	GMT (24h)	GMT (12h)

Convert EST to GMT (and GMT to EST) — Instant Eastern Time ↔ Greenwich Mean Time Converter

Need to convert EST to GMT fast? Use our free tool to turn Eastern Time (ET) to GMT in seconds. It supports EST to GMT, ET time to GMT, and the reverse GMT to EST—with a simple EST/EDT toggle so you’re accurate during Daylight Saving Time. If you’re searching for eastern time gmt, et to gmt, or est to gmt, you’re in the right place.

Quick Answer

EST → GMT: add 5 hours (EST is UTC−5)
EDT → GMT: add 4 hours (EDT is UTC−4)
GMT → EST: subtract 5 hours
GMT → EDT: subtract 4 hours
Examples:
12:00 EST = 17:00 GMT · 08:30 EDT = 12:30 GMT · 19:00 GMT = 14:00 EST

How to use the converter

Pick EST or EDT (Eastern Daylight Time).
Choose your date (DST can change the offset).
Drag the EST/EDT slider — the GMT time updates instantly.
Add extra time zones (London, Paris, Dubai, Tokyo, etc.) to compare at a glance.
Copy link to share the exact setup or Add to Calendar (.ics).

Tip: If you’re unsure whether it’s EST or EDT, use the EDT option for U.S. summer months and EST for winter.

What is EST vs. EDT vs. ET?

ET (Eastern Time) is the umbrella term.
EST (Eastern Standard Time) = UTC−5 (winter).
EDT (Eastern Daylight Time) = UTC−4 (summer DST).
So when people say “convert ET to GMT”, the offset depends on whether it’s EST or EDT on that date.

Popular reasons to convert EST ↔ GMT

Scheduling global meetings across Eastern Time and the UK/Europe.
Trading or sports start times across regions.
Travel planning and flight arrival coordination.
Publishing, streaming, and event countdowns.

FAQs

Q1. What is the difference between EST and GMT?
A. EST is Eastern Standard Time (UTC−5). GMT (Greenwich Mean Time) is UTC±0. To convert EST → GMT, add 5 hours.

Q2. What about EDT—does your converter handle it?
A. Yes. EDT (Eastern Daylight Time) is UTC−4. In the converter, choose EDT to add 4 hours to get GMT.

Q3. Is ET the same as EST?
A. ET (Eastern Time) is a general term that can be EST (UTC−5) in winter or EDT (UTC−4) in summer. Pick the correct mode for your date.

Q4. Does GMT change with Daylight Saving Time?
A. No. GMT does not change. The Eastern Time side (EST/EDT) is what shifts.

Q5. UK time vs GMT: are they the same?
A. In winter, UK time = GMT. In summer, the UK uses BST (British Summer Time, GMT+1). Our tool compares ET with GMT/UTC; add “Europe/London” as an extra zone to see UK local time.

Q6. Quick rule: how do I convert ET to GMT?
A. Winter (EST → GMT): +5 hours. Summer (EDT → GMT): +4 hours.

Q7. Quick rule: how do I convert GMT to EST/EDT?
A. GMT → EST: −5 hours. GMT → EDT: −4 hours.

Q8. Can I convert a specific date and time?
A. Yes. Select the date and drag the EST/EDT or GMT slider; the other side updates instantly.

Q9. How do I know if I should choose EST or EDT?
A. In the U.S., Daylight Saving Time typically runs mid-March to early November (EDT). Outside those dates it’s EST.

Q10. Can I compare more than two time zones?
A. Yes. Use Add Extra Time Zones to include cities like London, Paris, Dubai, Tokyo, Sydney, etc. They will sync with your chosen time.

Q11. Can I share a conversion with my team?
A. Yes. Click Copy Link to copy a URL that preserves your mode, date, time, and extra zones.

Q12. Can I add a converted time to my calendar?
A. Yes. Click Add to Calendar (.ics) to download an event file you can open in Google Calendar, Outlook, Apple Calendar, and more.

Q13. Does the converter support 12-hour and 24-hour formats?
A. Yes. Each time shows 12-hour plus a 24-hour label for clarity.

Q14. Why is my result off by 1 hour?
A. It’s usually a DST setting issue. Make sure you selected the correct mode (EST or EDT) for that date.

Q15. What cities use Eastern Time?
A. Examples include New York, Toronto, Miami, Atlanta (ET). In winter they’re EST (UTC−5); in summer EDT (UTC−4).

Q16. Is GMT the same as UTC?
A. For conversion purposes, GMT and UTC are equivalent in this tool.

Q17. Can I adjust the time by minutes?
A. Yes. Drag the slider (1-minute steps) or use the ±5 min buttons for fine control.