Worktally

Worktally Time & timesheets

When Do the Clocks Go Back?

US clocks go forward on Sunday, March 14, 2027 (2 am becomes 3 am) and UK clocks on Sunday, March 28, 2027 (1 am becomes 2 am), so the night is one hour shorter. The countdown shows when the clocks next change in the UK or US. Below, work out how many hours you really work on a night shift through the change.

Next clock change
–

Working through the night of the change?

on Sunday, as shown on the clock
Hours actually worked
–

Last checked: 1 November 2026

Clock change dates 2026 to 2030

YearUK forward (1 → 2 am)UK back (2 → 1 am)US forward (2 → 3 am)US back (2 → 1 am)
2026Sun, 29 Mar 2026Sun, 25 Oct 2026Sun, 8 Mar 2026Sun, 1 Nov 2026
2027Sun, 28 Mar 2027Sun, 31 Oct 2027Sun, 14 Mar 2027Sun, 7 Nov 2027
2028Sun, 26 Mar 2028Sun, 29 Oct 2028Sun, 12 Mar 2028Sun, 5 Nov 2028
2029Sun, 25 Mar 2029Sun, 28 Oct 2029Sun, 11 Mar 2029Sun, 4 Nov 2029
2030Sun, 31 Mar 2030Sun, 27 Oct 2030Sun, 10 Mar 2030Sun, 3 Nov 2030

The UK changes on the last Sunday in March and the last Sunday in October, at the same moment as the rest of Europe. British Summer Time (BST, UTC+1) runs between the two dates, Greenwich Mean Time (GMT, UTC+0) the rest of the year. The US changes on the second Sunday in March and the first Sunday in November.

London to US time difference around the clock change

For a few weeks each year the US is on daylight saving time while the UK is not, so London is one hour closer to the US than usual. This is when meetings, flights and trading hours get mixed up.

London vsMost of the yearDuring the gap weeks
New York, Miami (Eastern)5 hours behind4 hours behind
Chicago, Dallas (Central)6 hours behind5 hours behind
Denver (Mountain)7 hours behind6 hours behind
Los Angeles, Seattle (Pacific)8 hours behind7 hours behind
YearSpring gap (US already on summer time)Autumn gap (UK back on GMT, US not yet)
20268 Mar to 28 Mar25 Oct to 31 Oct
202714 Mar to 27 Mar31 Oct to 6 Nov
202812 Mar to 25 Mar29 Oct to 4 Nov

Example for 2026: a 3 pm call in London is 10 am in New York most of the year, but 11 am in New York from 25 to 31 October. Arizona (outside the Navajo Nation) and Hawaii never change their clocks, so their gap to London changes by an hour when the UK changes, not when the rest of the US does.

Clock changes in other countries

Ireland and all EU countries change at the same moment as the UK (01:00 UTC on the last Sunday in March and October), so the UK stays 1 hour behind Paris and Berlin all year. Most of Canada follows the US dates. Mexico stopped changing its clocks in 2022, apart from some areas near the US border. In the southern hemisphere it works the other way round: New Zealand goes forward on the last Sunday in September and back on the first Sunday in April, and New South Wales, Victoria, the ACT, Tasmania and South Australia go forward on the first Sunday in October and back on the first Sunday in April. Queensland, the Northern Territory and Western Australia do not change. The EU voted in 2019 to stop the clock change, but member states never agreed on a date, so the twice-yearly change continues.

Night shifts and the clock change

A shift from 10 pm Saturday to 6 am Sunday is 9 hours when the clocks go back and 7 hours when they go forward, even though the clock shows 8. If you fill in a timesheet, write down the hours you actually worked, not just start and end times. Add up your week with the work hours calculator, turn the result into decimal hours with the decimal hours converter, and check the extra hour against your weekly limit with the overtime calculator. The week number calculator shows which week the change falls in.

FAQ

When do the clocks go forward in 2027?
In the US on Sunday, March 14, 2027 at 2 am local time, when clocks jump to 3 am and daylight saving time starts. In the UK on Sunday, March 28, 2027 at 1 am GMT, when clocks jump to 2 am BST. For the 14 days in between, London is 4 hours ahead of New York instead of 5.
When does daylight saving time end in 2026 in the US?
Daylight saving time ends on Sunday 1 November 2026 at 2 am local time, when clocks in the US go back to 1 am. It starts again on Sunday 14 March 2027. Arizona (outside the Navajo Nation) and Hawaii stay on standard time all year. Most of Canada changes on the same day as the US.
When do the clocks go back in 2026?
In the UK on Sunday 25 October 2026: at 2 am BST the clocks go back to 1 am and the UK is on GMT again. In the US the clocks go back one week later, on Sunday 1 November 2026 at 2 am local time. The countdown above always uses your device's date.
Do I get an extra hour in bed?
Yes. When the clocks go back the hour between 1 and 2 am happens twice, so the night has 25 hours. When they go forward in March the night is one hour shorter. Easy way to remember it: spring forward, fall back.
Do I get paid for the extra hour on a night shift?
If you work through the night the clocks go back, you work one hour more than the clock shows, for example 9 hours on a 10 pm to 6 am shift. In the UK there is no special rule for the extra hour: your contract decides, but for minimum wage purposes every hour you actually work counts, so your average pay over the pay period must still reach the National Minimum Wage. In the US the Fair Labor Standards Act counts hours actually worked, so the extra hour counts towards your 40-hour overtime threshold.
Do I lose an hour of pay when the clocks go forward?
On a 10 pm to 6 am shift in March you only work 7 hours. Many employers pay the hours actually worked, so the shift is one hour shorter. Some contracts or agreements pay the scheduled shift in full. Check your contract or ask payroll, and use the shift calculator above to see the real hours.
What time do the clocks change?
In the UK the clocks go forward at 1 am GMT on the last Sunday in March and back at 2 am BST on the last Sunday in October, both at 01:00 UTC. In the US every time zone changes at 2 am local time, on the second Sunday in March and the first Sunday in November. Arizona (outside the Navajo Nation) and Hawaii do not change their clocks.
What is the time difference between London and New York after the clocks go back?
From the UK change on Sunday 25 October 2026 until the US change on Sunday 1 November 2026, London is 4 hours ahead of New York instead of the usual 5. From 1 November it is 5 hours again. The same happens in spring: from 8 to 28 March 2026 the difference was 4 hours.
Will my phone change automatically?
Phones, computers and smartwatches change on their own when they get the time from the network. Ovens, microwaves, car clocks, some central heating timers and older alarm clocks usually need changing by hand.
Why are the UK and US one week apart?
The US moved its dates in 2007 (Energy Policy Act 2005), so daylight saving time there starts three weeks earlier in March and ends one week later than in the UK. In those weeks the time difference between London and New York is 4 hours instead of the usual 5. Plan calls and deadlines with that in mind.

Legal basis and sources

For information only. Your contract or specific circumstances may change the result.

Related tools

Work Hours CalculatorHours worked per day and week, with breaks, in h:mm and decimal.Overtime CalculatorWeekly pay with time and a half or double time, from rate or salary.Week Number CalculatorCurrent week number, date to week and all ISO weeks of 2026–2028.Decimal Hours ConverterConvert 7:45 to 7.75 hours and back, with a minutes table.