When Do the Clocks Go Back in 2026? UK & Ireland Dates

If you’ve ever woken up on a Sunday morning feeling oddly refreshed, you might have the clock change to thank. In 2026, that extra hour arrives on 25 October, the date when clocks go back in both the UK and Ireland.

Next clock back (UK & Ireland): 25 October 2026 ·
Time change moment: 2:00 a.m. → 1:00 a.m. ·
Effect on sleep: Gain one extra hour ·
Next clock forward: 29 March 2026

Five key facts about the 2026 autumn clock change, drawn from official guidance in the UK and Ireland:

When do the clocks go back in 2026?

Exact date for the United Kingdom

• The UK clocks go back on Sunday 25 October 2026, according to RAC’s motoring guidance.
• The change occurs at 2:00 a.m., when local time reverts to 1:00 a.m. (Visit London).

Exact date for Ireland

• Ireland follows the same schedule: clocks go back at 2:00 a.m. on the last Sunday of October. In 2026 that falls on 25 October (Citizens Information Ireland).
• This marks the shift from Irish Summer Time (IST) to GMT.

Clocks go back at 2am on the last Sunday of October

• The rule is fixed: the last Sunday in October at 2 a.m., across both the UK and Ireland (Visit London).

The pattern ensures cross-border consistency every year, removing any guesswork for travellers.

Do we gain or lose an hour?

What happens to the clock time

• When clocks “fall back” they are set backward by one hour at 2 a.m. to 1 a.m. (RAC).
• The mnemonic “spring forward, fall back” helps remember the direction (Visit London).

Effect on daily schedule and light hours

• After the change, sunrise and sunset occur one hour earlier, giving brighter mornings but darker evenings (Visit London).

Common misconception: losing vs gaining

• Because the clock goes back, you actually gain an hour. The RAC notes that the 25 October 2026 shift “gives most people an extra hour of sleep” (RAC).
• The opposite happens in March: spring forward loses an hour.

The gain is immediate, but the shift in daylight timing can take a few days to feel natural.

Why do the clocks go back at 2am?

Historical reasons for the 2am time

• 2 a.m. was chosen in the early 20th century because it was a quiet period for rail schedules, minimising passenger disruption (Serious Readers DST explainer).

Minimizing disruption to rail schedules

• Trains rarely moved at 2 a.m. on Sundays, so the change could be applied without confusing timetables (Serious Readers).

Early Sunday morning chosen to avoid weekday business

• Shifting at 2 a.m. on Sunday avoids interrupting Saturday night activities and weekday work patterns. This standard remains today for both UK and Ireland (Visit London).

The implication: the 2 a.m. rule is a piece of 20th-century railway logic that still works perfectly in the age of smartphones.

When do the clocks go back in Ireland?

Ireland’s daylight saving schedule

• Ireland observes daylight saving time (Irish Summer Time) from the last Sunday in March to the last Sunday in October (Citizens Information Ireland).

Confirming the same date as the UK

• The Republic of Ireland and Northern Ireland (UK) change clocks on the exact same day and time: 2 a.m. on the last Sunday of October. For 2026, that is 25 October (Visit London).

Citizens Information official source

• The state-run Citizens Information service confirms: “Clocks go back by one hour at 2am on the last Sunday in October.”

This alignment simplifies planning for anyone commuting or traveling between the two jurisdictions.

Do I get an extra hour in bed when the clocks go back?

What ‘fall back’ means for sleep

• Because clocks go from 2 a.m. to 1 a.m., the night technically lasts one hour longer. If you sleep through the change, you gain that hour (RAC).

Practical tips to adjust to the time change

• To minimise circadian disruption, try going to bed at your usual time Saturday night; the next morning you’ll naturally wake an hour ‘earlier’ by the clock.
• Expose yourself to morning sunlight Sunday to help reset your internal clock.

Does it really mean more sleep?

• The RAC states the autumn 2026 change “gives most people an extra hour of sleep” – a clear public‑facing answer (RAC).
• However, some individuals with sensitive circadian rhythms may still feel groggy for a day or two because the sun clock shifts.

Timeline: past and future clock changes

• 31 October 2021 – clocks go back (UK & Ireland)
• 30 October 2022 – clocks go back
• 29 October 2023 – clocks go back
• 27 October 2024 – clocks go back
• 26 October 2025 – clocks go back
• 25 October 2026 – clocks go back (next occurrence)

Pattern: always the last Sunday of October. Source data from RAC’s historical record.

What the official sources say

“In the UK the clocks go forward 1 hour at 1am on the last Sunday in March, and back 1 hour at 2am on the last Sunday in October.”

– GOV.UK official guidance

“Date clocks go forward in Ireland: 29 March 2026. Clocks go back by one hour at 2am on the last Sunday in October.”

– Citizens Information Ireland

“BST will end this year on 25 October when clocks in the UK ‘fall back’ from 02:00 to 01:00.”

– BBC Weather

The pattern across all three authorities is identical: last Sunday of October, 2 a.m., one hour back. For residents of the UK and Ireland, the decision is already made by law. The only open question is whether future EU policy might shift Ireland’s timetable – but that remains, for now, unclear.

Related reading: When Do Clocks Go Forward – 2025 Dates UK US Australia · October Half Term 2025 – Dates for England, Scotland, Wales, NI

For those wondering exactly when the clocks go back in 2026, the date is the last Sunday in October.

Frequently asked questions