EST to GMT Time Converter
Eastern Time ↔ UK Time — what these abbreviations actually mean, and a live scrubber to find a meeting time that works for both.
New York vs London Overlap
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New York
EDTWed, Aug 19
•London
GMT+1Wed, Aug 19
•What Do EST and GMT Actually Mean?
EST — Eastern Standard Time (EST, UTC-5) runs part of the year; the rest of the year the same clocks are on Eastern Daylight Time (EDT, UTC-4) instead. People casually say "EST" for both — SyncHours' scrubber below already resolves whichever one is actually in effect for the date you pick.
GMT — Greenwich Mean Time (GMT, UTC+0) runs part of the year; the rest of the year the same clocks are on British Summer Time (BST, UTC+1) instead. People casually say "GMT" for both — SyncHours' scrubber below already resolves whichever one is actually in effect for the date you pick.
Timezone abbreviations like these aren't globally unique — several regions reuse the same three or four letters for unrelated zones. The scrubber above is anchored to real IANA timezone data (America/New_York and Europe/London) rather than the abbreviation text itself, so there's no ambiguity in the actual conversion.
Full City Guide
For working-hours breakdowns, day-shift warnings, and a deeper overlap guide between the specific cities behind these zones, see the New York to London guide.