Convert another UTC time to London time
Choose a UTC date and time. London’s date and GMT/BST offset are calculated for that instant; this result is separate from the current clocks above.
Open a temporary view of your chosen cities, date and time in the app and continue comparing. Save a separate profile only if you want to keep it.
London uses GMT or BST depending on the date
London is the reference capital for this English-language guide. Its Europe/London zone currently uses UTC+00:00 in winter and UTC+01:00 during British Summer Time. UTC itself does not change with the seasons.
Choose the actual date instead of adding a fixed hour year-round. The clocks and converter calculate London’s local date, time and offset using the date-specific time-zone rules. Historical dates can follow different rules.
Choose a UTC date and time to see the London time
- Choose a UTC date and time in the converter on this page. Select Back to now to return it to the current moment.
- Check the London date and UTC offset. The result’s app link continues the same instant in a temporary UTC/London comparison; opening it does not save a profile.
- For seconds, milliseconds or copied records, open Tools → UTC time converter in Time. Date & time is explicitly UTC, with Now UTC and hour controls for quick adjustments.
- Choose Paste timestamp for ISO or Unix records. ISO requires Z or an offset; Unix units can be Auto, seconds or milliseconds.
Winter, summer and midnight examples
2026-01-15 18:00 UTC is 18:00 in London on 15 January (GMT, UTC+00:00). On 2026-07-15, 18:00 UTC is 19:00 in London (BST, UTC+01:00).
2026-07-15 23:30 UTC is 00:30 in London on 16 July. The same 23:30 UTC on 15 January remains 23:30 on 15 January in London. Check the date as well as the clock.
Keep UTC visible or compare other places
In Time, the small UTC +00:00 option below own-zone search sets the profile reference to UTC; Undo can restore the previous zone. A favorite’s Use UTC text action changes its zone draft while keeping its name, photo and group, and Save commits it.
Use Europe/London for London’s dated time rather than a permanent numeric offset. In the app you can choose other cities as separate time zones. Conversion and temporary exploration do not save records or trigger Google synchronization.
Time-zone references
Facts / sources checked ·