EST to GMT converter

EST to GMT conversion table

EST or EDT? People search “EST”, “CST” or “PST” all year, but those names only apply in winter. From March to November US clocks are on daylight time (EDT, CDT, MDT, PDT), one hour later. This page uses the real local time in each US zone, so the answers are right whichever season you read it in. More in our EST vs EDT guide.

GMT vs UK time. GMT never changes. The UK uses GMT only in winter and British Summer Time (GMT+1) from late March to late October. For London local time, use UK time to EST.

When the time difference changes

Eastern Time uses daylight saving time. Next clock changes: Nov 1, 2026 (to UTC-5), Mar 14, 2027 (to UTC-4). Greenwich Mean Time does not use daylight saving time. It stays at UTC+0 all year.

Best time to call or meet

• January: shared 9-to-5 hours are 9:00 AM–12:00 PM in Eastern Time (2:00 PM–5:00 PM in Greenwich Mean Time).
• July: shared 9-to-5 hours are 9:00 AM–1:00 PM in Eastern Time (1:00 PM–5:00 PM in Greenwich Mean Time).

Planning with more than two places? Use the meeting planner.