LONNOW.COMLONDON UPDATE
London is back on GMT: check your clocks and calendar
London’s clocks went back on Sunday 25 October: 2am BST became 1am GMT. Check manual clocks and the time zone of international calls before the working week.
What changed on 25 October
The UK returned to Greenwich Mean Time on Sunday 25 October, the date confirmed by GOV.UK.
The clocks moved back one hour at 2am British Summer Time. London is now on GMT, or UTC+0, rather than the UTC+1 offset used during summer.
The change applies to the UK clock, not just London.
- Change
- 25 October 2026: 02:00 BST became 01:00 GMT
- London now
- GMT · UTC+0
- Source checked
- 25 October 2026 · GOV.UK and National Physical Laboratory
On this page
The quick household check
Look at the clocks you actually use: your alarm, watch, cooker and car dashboard.
Compare them with a device whose automatic date, time and location settings are enabled. Do not turn a clock back twice because another member of the household has already done it.
If an alarm matters on Monday morning, check its display and the alarm setting before bed.
For calls abroad, check both cities
A meeting that was convenient last week may fall at a different local time now.
Countries do not all change their clocks on the same date, and some do not change at all. Open the meeting for its actual date and check both locations.
A calendar set to Europe/London follows London’s seasonal clock; a fixed GMT+1 setting stays an hour ahead.
Tickets still use the organiser’s local time
For a concert, museum booking or train journey, read the time shown by the organiser or operator.
Do not add or subtract an hour from a ticket yourself. Reopen the booking confirmation if an imported calendar entry looks wrong.
The clock change does not, by itself, confirm a service is running or that an event has space available.
Make room for the earlier evening
If you are heading out for a walk, check the daylight window for your route rather than relying on last weekend’s routine.
Keep the journey home manageable, especially with children. Our London event calendar is a separate way to choose an outing; this article is a timekeeping update, not an event listing.
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