How many time zones does United Kingdom have?
The United Kingdom uses Greenwich Mean Time in winter and British Summer Time during the daylight-saving season.
Time zones are more than fixed UTC offsets. They contain regional rules that determine whether and when clocks change. Select a city and date when planning a future event.
United Kingdom time-zone identifiers
| Identifier | Current reference offset | Seasonal change |
|---|---|---|
| Europe/London | UTC+00:00 | Yes |
Planning calls with United Kingdom
Use the converter for a known time or the meeting planner when several participants are involved. Both tools apply date-aware time-zone rules and show local day changes.