Calendar invites
Recurring meetings that cross United Kingdom should be checked around Mar, Oct; one side may move before the other.
Weekly digest
Pick the categories you care about: movies, AI launches, sports, eclipses, and major public dates. One email per week, and never anything you did not ask for.
Want full preferences? Customize your digest →
DST calendar
IANA zone: Europe/London. Transitions from 2024 through 2029.
Last updated recently. DST rows are generated from the IANA timezone record for Europe/London. The page is a planning reference, not a legal notice; check local government announcements for emergency or newly legislated clock changes.
Live values rendered at Jun 7, 10:03 PM UTC.
Next DST transition
United Kingdom
2026-10-25 01:00 local
Quick answer
United Kingdom observes seasonal clock changes in the sampled IANA range. The next modeled change is 2026-10-25 from GMT+1 to GMT.
IANA zone
Europe/London
Current offset
UTC+01:00
Source type
IANA + policy source
The United Kingdom switches between Greenwich Mean Time and British Summer Time. The civil rule is tied to the last Sundays in March and October, but this page uses IANA transitions rather than a hand-coded rule.
Current offset signal
UTC+01:00
Next transition
2026-10-25 · GMT+1 to GMT
Transition months in range
Mar, Oct
Pattern summary
3 spring-forward and 3 fall-back transitions appear in the latest sampled rows.
Recurring meetings that cross United Kingdom should be checked around Mar, Oct; one side may move before the other.
Use the local time after the transition for departures, hotel check-ins, and event tickets. The repeated fall-back hour can make same-night schedules ambiguous.
Store timestamps in UTC, then render wall-clock time with Europe/London. Spring-forward gaps and fall-back repeats should not be hand-coded from country names.
Most recent sampled transition: 2026-03-29 00:59 to 02:00 (GMT → GMT+1).
The transition rows below are computed from the IANA timezone database for Europe/London. The policy source is shown separately so users can distinguish machine-readable timezone math from legal or government clock-change notices.
Used for the exact UTC instants, abbreviations, and before/after offsets on this page.
Check IANA Time Zone DatabaseGOV.UK publishes the public rule for UK clock changes: forward on the last Sunday in March and back on the last Sunday in October.
Check official policy sourceDST policy evidence
Practical use cases
Trust boundaries
These retained city pages use the same IANA zone as this DST reference. Open them when you need live local time, travel context, holidays, airports, or city-level planning rather than the zone transition table alone.
Reference fields include the IANA zone, current offset, next transition, transition months, pattern summary, policy-source label, related city clocks, and sampled before/after abbreviations.
2024-03-31 00:59 → 02:00
GMT → GMT+1 (+1 hour) · UTC1
2024-10-27 01:59 → 01:00
GMT+1 → GMT (-1 hour) · UTC0
2025-03-30 00:59 → 02:00
GMT → GMT+1 (+1 hour) · UTC1
2025-10-26 01:59 → 01:00
GMT+1 → GMT (-1 hour) · UTC0
2026-03-29 00:59 → 02:00
GMT → GMT+1 (+1 hour) · UTC1
2026-10-25 01:59 → 01:00
GMT+1 → GMT (-1 hour) · UTC0
2027-03-28 00:59 → 02:00
GMT → GMT+1 (+1 hour) · UTC1
2027-10-31 01:59 → 01:00
GMT+1 → GMT (-1 hour) · UTC0
2028-03-26 00:59 → 02:00
GMT → GMT+1 (+1 hour) · UTC1
2028-10-29 01:59 → 01:00
GMT+1 → GMT (-1 hour) · UTC0
2029-03-25 00:59 → 02:00
GMT → GMT+1 (+1 hour) · UTC1
2029-10-28 01:59 → 01:00
GMT+1 → GMT (-1 hour) · UTC0