How do you convert GMT to EST?

Use EST = GMT − 5 hours. For 10:00 GMT that gives 05:00 EST.

What does 10:00 GMT actually mean?

It sits between 7 and 13 GMT; the table on this page shows how those compare.

10:00 GMT to EST

05:00 EST

10:00 Greenwich Mean Time equals 05:00 Eastern Standard Time.

These are standard-time offsets, which never change. What changes is which one a place observes: New York is on EST in winter but EDT (an hour later) during daylight saving, and the UK is on GMT in winter and BST in summer. If you mean "the time in New York right now", use the full converter — it reads live offsets.

How the conversion works

This one is a formula rather than a single multiplier:

EST = GMT − 5 hours → 05:00 EST

Going the other way: 05:00 EST to GMT.

Convert a different time zone

GMT =05:00 EST

Open the full time zone converter for every other unit.

Nearby values

GMT	EST
07:00 GMT	02:00 EST
08:00 GMT	03:00 EST
09:00 GMT	04:00 EST
11:00 GMT	06:00 EST
12:00 GMT	07:00 EST
13:00 GMT	08:00 EST

Questions

What is 10:00 GMT in EST?: 10:00 GMT is 05:00 EST.
How do you convert GMT to EST?: Use EST = GMT − 5 hours. For 10:00 GMT that gives 05:00 EST.
What does 10:00 GMT actually mean?: It sits between 7 and 13 GMT; the table on this page shows how those compare.