EST to GMT Converter
GMT is 5 hours ahead of Eastern Time in winter (EST) and 4 hours ahead in summer (EDT). Enter a time to convert, or see the current time in both zones.
Enter a valid date and time.
What is the time difference between EST and GMT?
What is the time difference between EST and GMT? GMT is 5 hours ahead of Eastern Time in winter (EST) and 4 hours ahead in summer (EDT). GMT itself never changes, but UK clocks observe British Summer Time (BST, GMT+1) from late March to late October, which most people mean by "GMT" in summer.
Standard and daylight time in Eastern Time and Greenwich Mean Time
Strictly, EST and GMT are the winter (standard) names. In summer the zones use daylight time names such as EDT and GMT. People often say "EST" all year, so this page converts using the real rules for each date: America/New_York and UTC in the IANA time zone database.
Frequently asked questions
Does daylight saving change the EST to GMT difference?
GMT itself never changes, but UK clocks observe British Summer Time (BST, GMT+1) from late March to late October, which most people mean by "GMT" in summer.
Which time zone database is used?
Your browser's built-in copy of the IANA time zone database, which is updated with browser releases.
More time zones
See all- Time Zone ConverterConvert any time between any two zones.
- CST to ESTCentral Time to Eastern Time, with DST handled.
- EST to PSTEastern Time to Pacific Time, with DST handled.
- EST to CSTEastern Time to Central Time, with DST handled.
- PST to CSTPacific Time to Central Time, with DST handled.
- UTC to ESTCoordinated Universal Time to Eastern Time, with DST handled.
- MST to ESTMountain Time to Eastern Time, with DST handled.
- CST to PSTCentral Time to Pacific Time, with DST handled.