GMT to EST Time Zone Converter — Greenwich to Eastern

Convert between any time zones worldwide. Free and accurate time zone converter with DST support.

Edit time or date on either side — all cards update instantly.

From

UTC...

Greenwich Mean Time

To Same day

UTC...

Eastern Standard Time

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Upcoming clock change (daylight saving)

From (Greenwich Mean Time): Next DST change: October 25, 2026 — BST shifts to GMT (UTC+0)
To (Eastern Standard Time): Next DST change: November 1, 2026 — EDT shifts to EST (UTC-5)

GMT to EST Conversion Chart

Last updated: April 2026

Today's reference — every 3 hours. DST is applied automatically.

GMT Time	EST Time
12:00 AM	7:00 PM (-1 day)
3:00 AM	10:00 PM (-1 day)
6:00 AM	1:00 AM
9:00 AM	4:00 AM
12:00 PM	7:00 AM
3:00 PM	10:00 AM
6:00 PM	1:00 PM
9:00 PM	4:00 PM

Popular Timezone Conversions

CST to EST PST to EST MST to EST JST to EST GST to EST IST to EST

About GMT to EST Conversion

Last updated: April 2026

Converting time between GMT and EST requires understanding their time zone offsets and any daylight saving time adjustments. GMT (GMT) operates at UTC+1, while EST (EST) is set to UTC-4. This means EST is 5 hours behind GMT. For example, when it's 12:53 PM GMT on May 5, 2026, it's 7:53 AM EST in EST. Both Europe/London and America/New_York observes daylight saving time, switching between GMT (UTC+0) and BST (UTC+1). Keep this in mind when converting times, especially during the spring and fall transition periods. Use this converter to quickly find the equivalent time in EST for any time in GMT, whether you're scheduling meetings, planning travel, or coordinating with teams across different time zones.

How to Use the Time Zone Converter

Last updated: April 2026

Select your source timezone from the "From timezone" dropdown (use search to find quickly)
Enter the date and time you want to convert (or click "Today" and "Now" for current time)
Select your target timezone from the "To timezone" dropdown
The conversion updates automatically as you change inputs - no button needed!
Use "Copy" button to copy the converted time, or use presets for quick conversions

More Conversions from GMT

GMT to CST GMT to MST GMT to MDT GMT to PST GMT to AKST GMT to HST GMT to CET GMT to EET GMT to MSK GMT to IST GMT to JST GMT to CST-CHINA GMT to HKT GMT to SGT GMT to GST GMT to AEST GMT to AWST GMT to NZST GMT to UTC GMT to ART GMT to BRT GMT to PHT GMT to BDT GMT to KST GMT to SAST GMT to ICT GMT to EAT GMT to WAT GMT to PKT

Frequently Asked Questions

Last updated: April 2026

What US states use Eastern Time (EST/EDT)?

Eastern Time covers most of the US East Coast and parts of the Midwest border, including New York, Florida, Georgia, Pennsylvania, Ohio, North Carolina, Michigan, and others. A few states are split with Central Time at the western edge.

What is the time difference between GMT and EST?

The time difference between GMT and EST is 5 hours. EST is 5 hours behind GMT.

Is EST ahead of or behind GMT?

EST is behind GMT by 5 hours. When it's 9 AM in GMT, it's 4:00 AM in EST.

How many hours do you add to GMT to get EST?

You subtract 5 hours from GMT to get EST. For example, 9 AM GMT - 5 hours = 4:00 AM EST.

Does the GMT to EST time difference change during Daylight Saving Time?

Yes, the time difference can change during Daylight Saving Time (DST). Both GMT and EST observe DST, but they may start and end DST on different dates, causing the difference to temporarily change.

What is 9 AM GMT in EST?

9 AM GMT is 4:00 AM EST. This conversion accounts for the 5-hour time difference between the two timezones.

Is GMT the same throughout the year when converting to EST?

No, the conversion between GMT and EST can vary during the year due to Daylight Saving Time. The time difference may change by 1 hour during DST transition periods (typically March and November), so always use a current timezone converter for accurate conversions.

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