GMT to EDT

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EDT is the daylight-saving (summer) offset for US Eastern. From early November to mid-March those clocks return to EST (UTC−5) for standard time. See that conversion →

What is the GMT to EDT time difference?

EDT is 4 hours behind GMT. GMT is Greenwich Mean Time at a fixed UTC+0, and EDT is Eastern Daylight Time at UTC−4. Because both are named constant offsets rather than city clocks, the gap does not move — the 24-hour table above reads the same every day of the year. To convert by hand, subtract 4 hours from the GMT time.

What time is 9 AM GMT in EDT?

9 AM GMT is 5:00 AM EDT. That follows from the gap of 4 hours between UTC+0 and UTC−4, so every GMT hour moves by the same amount. The full 24-hour table above lists every hour, so you can convert any GMT time to EDT at a glance. Because both are fixed offsets, that mapping is identical on any date — there is no daylight-saving exception to remember.

Is GMT ahead of or behind EDT?

EDT is 4 hours behind GMT, which is the same as saying GMT is 4 hours ahead of EDT. That comes straight from the two offsets: UTC+0 for GMT against UTC−4 for EDT. So at the same instant, 9:00 AM on GMT reads 5:00 AM on EDT. Both are fixed named offsets, so the direction and the size of that gap hold all year.

Does GMT to EDT change with daylight saving?

The GMT↔EDT offset itself never changes: UTC+0 to UTC−4 is a constant 4 hours gap. Note: EDT is the daylight-saving (summer) offset for US Eastern. From early November to mid-March those clocks return to EST (UTC−5) for standard time. What can change is which abbreviation a region is using at a given date, which is why the notes above link across to the matching conversion. Converting between the named offsets themselves, as this page does, is the same arithmetic on every day of the year.