For anyone catching an early flight or an overnight train, the UKâs October clock change is worth checking before the journey begins. A familiar departure time can become confusing when a phone adjusts automatically but a watch, car dashboard or saved travel reminder does not.
Clocks across the UK go back on Sunday, October 25, 2026. At 2am British Summer Time, they return to 1am Greenwich Mean Time, giving the night an extra hour. The date and timing are confirmed in the UK governmentâs clock-change guidance.
The immediate difference is an earlier sunset by the clock. For travellers, however, the detail that deserves more attention is how the change affects departure times, airport transfers and time differences with other countries.
What happens to flights, trains and airport transfers?
Use the local departure and arrival times shown in your airlineâs current itinerary. Do not manually subtract an hour from a Sunday flight time simply because the clocks have changed. A departure listed as 7am local time remains a 7am departure unless the airline updates the booking.
Instead, check that your alarm and the device displaying your itinerary are using the correct time zone. Phones with automatic date, time and time-zone settings enabled will normally adjust, but manually configured devices may need attention.
For example, a clock left on Saturdayâs setting will show 7am when the correct UK time is 6am on Sunday. That could send someone to the airport early; relying on several devices showing different times can create further confusion.
Overnight travel needs closer attention because the hour from 1am to 2am occurs twice: first in BST, then in GMT. If a coach, taxi pickup or other reservation falls within that hour, ask the operator to clarify which occurrence it means. Do not assume every overnight service handles the repeated hour in the same way.
For rail journeys, check your exact travel date in the National Rail journey planner and with your operator. Separate autumn timetable changes are also in effect on some routes. National Railâs leaf-fall timetable guidance lists services with adjusted departure times, including some early-morning trains. These changes are separate from the clocks going back.
Travellers comparing this weekend with the spring adjustment can check Swikblogâs UK daylight saving time guide, which explains both changes in the 2026 calendar.
Why the time difference with India and the US changes
India does not make a seasonal clock change. Once the UK returns to GMT, India moves from four-and-a-half hours ahead of the UK to five-and-a-half hours ahead. A noon appointment in London therefore corresponds to 5.30pm in India from October 25, rather than 4.30pm.
There is also a short period when the usual LondonâNew York time difference changes. The US follows a different schedule: the National Institute of Standards and Technology explains that daylight saving time ends on the first Sunday in November, which falls on November 1 in 2026.
| Date | When London is at noon |
|---|---|
| October 24 | 7am in New York; 4.30pm in India |
| October 25â31 | 8am in New York; 5.30pm in India |
| November 1, after New Yorkâs clock change | 7am in New York; 5.30pm in India |
These conversions are useful for airport pickups, calls home and booking confirmations. They do not mean a flightâs actual duration changes by an hour. Compare the full itinerary, including dates and local time zones, rather than subtracting the displayed departure time from the arrival time.
For trips between Britain and Ireland, both countries turn their clocks back on October 25, so their time difference remains unchanged. Swikblogâs Ireland clock-change explainer covers the Irish schedule.
Before leaving, refresh your booking, confirm any overnight pickup and check your airport connection. If you are planning outdoor sightseeing, check the destinationâs sunset time too: an afternoon arrival leaves less daylight by the clock after the change.
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