GMT to EST Converter

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

Edit time and date on either side to see the conversion instantly.

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GMT
Greenwich Mean Time
Date changes are handled automatically when conversions cross midnight.
EST
Eastern Standard Time
Date changes are handled automatically when conversions cross midnight.

About GMT to EST Conversion

Converting time between GMT and EST requires understanding their time zone offsets and any daylight saving time adjustments. GMT (GMT) operates at UTC+0, while EST (EST) is set to UTC-5. This means EST is 5 hours behind GMT. Note that due to the time difference, the date may change. When it's 12:55 AM GMT on February 4, 2026, it's 7:55 PM EST on February 3, 2026 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

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

Frequently Asked Questions

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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