Clocks Go Back 2026: When British Summer Time Ends and What Actually Changes

The clocks go back on Sunday 25 October 2026. At 2:00 AM, clocks return to 1:00 AM, British Summer Time ends, and the UK goes back to Greenwich Mean Time until the following spring.

You get an hour in bed. You also lose the light at the end of the working day, and that is the change people actually feel. In London, sunset moves from 17:52 on the Saturday to 16:50 on the Sunday. By the Monday commute, it is dark before six.

Here is exactly what happens, what the daylight looks like across the UK either side of the change, and what late October weather usually does.

The Exact Mechanics

At 2:00 AM on Sunday 25 October 2026, clocks go back one hour to 1:00 AM. The UK moves from British Summer Time (BST, UTC+1) to Greenwich Mean Time (GMT, UTC+0).

Phones, tablets and computers change themselves. Analogue clocks, car dashboards, oven timers and central heating programmers usually do not, so turn those back before bed on Saturday 24 October.

The clocks will go forward again on Sunday 28 March 2027, when BST resumes.

The rule behind it is fixed rather than announced each year: clocks go forward on the last Sunday in March and back on the last Sunday in October. The government's page on when the clocks change confirms the current and next dates.

Sunrise and Sunset Across the Clock Change Weekend

The table below gives sunrise and sunset for six UK cities on the Saturday, still on BST, and on the Sunday, now on GMT.

Two things stand out.

The morning gain is real but short-lived. Edinburgh goes from an 08:01 sunrise to 07:04 overnight, which genuinely helps a school run. It does not last. By late November, Edinburgh's sunrise is back past 08:00 anyway, and the borrowed hour has been spent.

The evening loss is immediate and permanent for the season. Every city on that list loses its last hour of usable outdoor light in a single night, and none of it comes back until spring.

Why It Feels Worse Than an Hour

The clock change lands in the same fortnight that the days are shortening fastest of the whole year. Around the equinox, the UK loses roughly three to four minutes of daylight per day. So the hour you lose on 25 October arrives on top of a decline that was already steep.

The effect is that late October feels like it collapses rather than fades. This is the same mechanism behind the searches that spike from mid-August onwards, which we covered in when the nights start drawing in.

What Late October Weather Actually Does

The clock change coincides with a genuine seasonal shift, not just a perceived one. October is the month the UK's rainfall totals jump, particularly in the west.

Met Office 1991 to 2020 averages for October:

Western Scotland averages sixteen wet days in October and 137mm of rain. That is more than double London's total in the same month, and it is the single clearest illustration of why a national forecast is close to useless in autumn.

The other reason October matters: the UK storm season runs from the start of September, and named storms cluster from October onwards. The list for this season is in our guide to UK storm names 2026 to 2027.

The Practical Consequences Nobody Plans For

Four things change on the Monday after the clocks go back, and all four are predictable.

• Your commute home is in the dark. For most of England, sunset falls before 17:00 within a fortnight of the change. If you cycle or walk, lights and reflective kit stop being optional on 26 October, not in December.
• Road risk rises in the late afternoon. The evening peak shifts from daylight into darkness overnight, while traffic volumes stay the same. The effect is concentrated in the first weeks after the change, before drivers adjust.
• Heating comes on properly. October's average lows across northern Britain sit at 6C to 7C. Most households cross their heating threshold within days of the clock change rather than at a fixed calendar date.
• Outdoor plans move to the weekend. After 25 October, weekday daylight is effectively confined to working hours for most of the country. Anything that needs light happens on a Saturday.

Why the UK Still Does This

The clock change is unpopular in surveys and survives anyway, and the reason is geography.

The UK stretches a long way north. If the country stayed on BST through winter, sunrise in Glasgow would come after 09:00 in December, and in parts of northern Scotland it would be close to 10:00. That was the finding of the 1968 to 1971 experiment, when the UK trialled year-round BST and abandoned it after sustained opposition from Scotland and northern England.

Every proposal since has run into the same wall. Lighter evenings in the south are paid for with dark mornings in the north, and there is no arrangement of the clocks that gives both. The current compromise moves the pain to the season where the daylight is scarcest.

The legal basis remains the Summer Time Act 1972, with dates set by Order in Council. The EU voted in 2019 to allow member states to abandon seasonal clock changes, but the change was never implemented, and the UK left before any of it applied here.

Making the Transition Less Miserable

The advice that actually works is unglamorous.

1. Get morning light early. The first week after the change is the one that resets your body clock. Fifteen minutes outside before 10:00 does more than any amount of evening effort.
2. Do not shift your bedtime. The hour is a gift only if you use it as sleep. Going to bed at the same clock time on Sunday is the cleanest way to absorb the change.
3. Move exercise to the morning or the weekend. Trying to hold on to weekday evening outdoor activity through November is how most autumn routines break.
4. Check your lights on the Saturday. Bike lights, torch batteries, outside sensor lights, car bulbs. It is a ten minute job that you will otherwise do in the dark on Monday.

Frequently Asked Questions

What time exactly do the clocks go back in 2026?

At 2:00 AM on Sunday 25 October 2026, when clocks return to 1:00 AM. That single hour between 1:00 and 2:00 AM happens twice.

Do I get an extra hour in bed?

Yes. The night of Saturday 24 October into Sunday 25 October is 25 hours long. Whether you get the hour depends entirely on whether you go to bed at your usual time.

When do the clocks go forward again?

Sunday 28 March 2027, when British Summer Time resumes and an hour of morning light shifts back to the evening. Our guide to the spring change explains what happens when the clocks go forward.

Does the clock change affect the weather?

No. The weather is entirely indifferent to what the clocks say. What changes is when the daylight falls relative to your day, which is why late October feels like a step change even though the atmosphere is doing the same gradual thing it was doing a week earlier.

Is autumn officially over when the clocks go back?

No. Meteorological autumn runs from 1 September to 30 November, and astronomical autumn runs until the winter solstice in December. The clock change sits in the middle of both. We cover the distinction in when autumn starts in the UK.

Will the UK ever scrap the clock change?

There is no current legislation to do so. Every serious attempt has stalled on the same objection, which is that permanent summer time would push winter sunrise in Scotland close to 10:00 AM. Without a solution to that, the twice-yearly change is likely to continue.

The Week After Is the One That Matters

Nothing about 25 October is difficult. The hard part is the fortnight that follows, when the light goes at half past four and it is still eight weeks to the shortest day.

The practical answer is to plan around it rather than be surprised by it: outdoor things at weekends, lights checked before you need them, and a forecast checked in the morning rather than assumed. If you want to know what the rest of the season is likely to bring, our guide to autumn weather in the UK sets out what to expect between now and December.