Does daylight saving time change the offset between Greenwich Mean Time (GMT) and Eastern Time (EST/EDT)?

Yes. Whenever either region begins or ends daylight saving time (if it observes DST), the difference between clocks can shift. This converter uses real-time timezone data so the offset stays accurate.

Is the Greenwich Mean Time (GMT) to Eastern Time (EST/EDT) converter free?

Yes. TeamTimezones is free to use with no signup required. Pick your zones, compare current times, and plan meetings across regions.

How accurate is the Greenwich Mean Time (GMT) to Eastern Time (EST/EDT) conversion?

The tool uses modern browser timezone rules (IANA) and matches what you see above for “right now”. Always double-check mission-critical schedules around DST transition nights.

Greenwich Mean Time (GMT) to Eastern Time (EST/EDT) Time Converter

Eastern Time (EST/EDT) is 4 hours behind Greenwich Mean Time (GMT) right now.

At 00:00 (midnight) Greenwich Mean Time (GMT) on 2026-05-22, it is 8:00 PM in Eastern Time (EST/EDT) on 2026-05-21. Matches how people read “0 GMT to EST”: midnight GMT, evening the day before on the US Eastern clock.

When it is 12:00 PM in Greenwich Mean Time (GMT), it is 8:00 AM in Eastern Time (EST/EDT) on that same date.

The exact difference can change when either place starts or ends daylight saving time.

Greenwich Mean Time (GMT)

7:33 AM

Friday, May 22

Eastern Time (EST/EDT)

3:33 AM

Friday, May 22

Quick reference (same moments)

Typical local hours in Greenwich Mean Time (GMT) and matching clock time in Eastern Time (EST/EDT) for 2026-05-22.

Greenwich Mean Time (GMT)	Eastern Time (EST/EDT)
9:00 AM	5:00 AM
12:00 PM	8:00 AM
3:00 PM	11:00 AM
6:00 PM	2:00 PM

Greenwich Mean Time (GMT) to Eastern Time (EST/EDT) Time Converter

Current Time Comparison

Greenwich Mean Time (GMT)

Eastern Time (EST/EDT)

Quick reference (same moments)