Clocks Going Back: Adjusting Hours and Lighting

When the clocks go back, your customers get an extra hour of sleep and your business gets a sudden change of routine. Evenings turn dark an hour earlier, footfall patterns shift, night shifts gain an hour and some devices quietly show the wrong time. This guide helps you plan the change: when it happens, how to adjust opening hours and rotas, what to check in your tools, and how to light your premises for the darker months.

Collection of different analog clocks with various faces and frames grouped together — One hour back on the clock can change your opening hours, rotas and evening trade.

Key takeaways

In 2027 the clocks go back in the UK on 31 October and in the US on 7 November, so plan for two dates if you work across both.
Darker evenings change when customers visit. Review your hours using your own sales data rather than habit.
Overnight shifts on the change night run an hour longer, so plan rotas and pay in advance and check your local rules.
Update your published hours, booking tools and any manually set clocks, and walk your premises at the new closing time to check lighting.

The clock change is one of those small events that catches businesses out every year. A cafe opens at the usual time to an empty street because commuters changed their routine. A security system timestamps a delivery an hour wrong. A client in another country joins a video call an hour early. Staff on the overnight shift ask whether they are paid for the extra hour, and nobody is sure.

None of these are serious on their own, but they are easy to avoid with a little planning. It is late September, which gives you about a month to prepare. Let's walk through it.

When the clocks go back in 2027

In the UK, the clocks go back one hour on Sunday 31 October 2027. In the US, they go back one hour on Sunday 7 November 2027. Most EU countries follow the same date as the UK. Some places do not change their clocks at all, so check the rules for anywhere you trade or have staff.

For the week between those two dates, the time difference between the UK and the US East Coast is one hour shorter than usual. If you run calls, deliveries, live chat cover or deadlines across the Atlantic, that week is where mistakes happen.

31 October and 7 November 2027 The dates the clocks go back in the UK and the US, creating one week when the usual time difference shrinks by an hour UK and US clock change schedules for 2027

Pro tip

Put both dates in your shared calendar now, with a reminder one week before each. Add a note for the in-between week: "UK and US gap is one hour shorter, double-check call times."

Review your opening hours

Darker evenings change behavior. Some customers shop earlier to get home before dark. Others stop popping in after work. Morning trade can pick up as it gets lighter earlier for a few weeks. Your hours should follow your customers, not last year's habit.

Use your own data

Pull last autumn's sales by hour. Most till and booking systems can show sales or appointments by time of day.
Compare before and after the change. Look at the two or three weeks either side of last year's clock change.
Spot the dead hours. Find any hour where takings rarely cover the cost of staying open, such as staff, heating and lighting.
Spot the busy hours. Note any new peaks, such as earlier lunch trade or a busier Saturday morning.
Decide on a winter timetable. Shift, shorten or extend hours based on what the numbers show.
Set a review date. Check again after four weeks and adjust before the holiday rush begins.

If you have no data yet, ask your regulars. A simple question at the till or in your newsletter, such as "Would earlier opening help you in winter?", can tell you a lot.

Example

Imagine Tom, who runs a small bike repair shop open until 7 pm. Looking at last year's records, he sees that almost no customers came in after 6 pm once the clocks went back, while Saturday mornings got busier. For the winter, he closes at 6 pm on weekdays and opens an hour earlier on Saturdays. He updates his hours everywhere a week before the change and adds a note in his newsletter. Total staff hours stay the same, but they now match when customers actually turn up.

Plan rotas and pay for the change night

If anyone works overnight when the clocks go back, their shift will be an hour longer than usual. Someone working from 10 pm to 6 am works nine hours that night, not eight.

Plan the rota early. Decide whether the shift runs as normal for an extra hour, ends an hour earlier by the clock, or is split.
Decide how the hour is paid. Hourly staff usually expect to be paid for time worked. Check your contracts and local employment law, and tell staff in advance how it will be handled.
Watch rest breaks and limits. A longer shift may affect break entitlements or limits on working time where you are. Check the rules for your country or state.
Check your time tracking. Make sure your time clock or app records the extra hour correctly. If staff clock out at 6 am, the system should show nine hours.

Employment rules differ between the UK, the US, EU countries and individual states. This is general information, not legal advice, so check official guidance or speak to an employment adviser if you are unsure.

Common mistake

Assuming payroll will sort it out. Some time tracking tools handle the change automatically and some do not. Check the timesheets for the change night before you run payroll, and correct any errors before people are paid.

White wall covered with many round clocks of different sizes and designs arranged together — Every clock, device and booking page in your business needs to agree on the new time.

Update your tools and published hours

Phones and laptops update themselves. Many other things in a small business do not. Make a list of everything that shows or depends on the time.

Things that often need a manual change

Wall clocks, oven and microwave clocks, and older tills.
Security cameras and recorders, so footage has accurate timestamps.
Timers on lighting, heating, signs and alarms.
Door access systems and time clocks.
Vehicle clocks and dashcams.

Things to check online

Google Business Profile: if you change your hours for winter, update them here so search results and maps show the right times. You can also post an update about the new hours.
Booking tools: if you use Calendly, Acuity Scheduling, Square Appointments or SimplyBook.me, confirm your time zone setting and your availability for the new hours. Check that appointments booked before the change still show correctly.
Your website and social profiles: update any page or bio that lists your hours.
Email signatures and autoresponders: fix any that mention support hours.
Scheduled posts and emails: check anything set to go out around the change dates, especially if your audience is in another country.

Check each tool's current settings and help pages, as features and defaults change.

Light your premises for earlier darkness

After the clocks go back, closing time often happens in full darkness. That affects safety, security and how welcoming you look from the street.

Reset timers. Move exterior and window lighting timers so lights come on before dusk, not an hour after.
Check sensors. Motion lights at doors, car parks and bin areas should cover the routes staff use when locking up.
Make your shop visible. A well-lit window and sign tell passers-by you are open. A dark front can look closed even when you are not.
Plan the walk to the car. Staff closing alone in the dark may feel less safe. Consider pairing closers, adjusting finishing times or making sure routes are well lit.
Watch energy use. Longer lighting hours add up. Efficient bulbs and timers that switch off when you close help control the bill.

For new outdoor fittings or wiring, use a qualified electrician.

Tell customers, clients and staff

A short message a week before the change saves confusion. Keep it simple.

Customers: post new winter hours on your door, website and social channels, and mention them in your newsletter.
International clients: confirm meeting times for the in-between week using both time zones, for example "3 pm London / 11 am New York".
Staff: share the updated rota, how the change night is paid and any new closing routine.

A clock change planning template

Copy this into a spreadsheet and add one row per task. The dates below follow the 2027 UK and US changes.

Task	Applies to	Owner	Due date	Done
Decide winter opening hours	All locations	Owner	15 Oct	No
Update Google Business Profile and website hours	UK shop	Shift lead	24 Oct	No
Confirm call times for in-between week	US clients	Account manager	29 Oct	No

Your clock change checklist

Add 31 October (UK) and 7 November (US) 2027 to your shared calendar
Review last autumn's sales by hour and set winter opening hours
Plan overnight rotas and decide how the extra hour is paid
Check time tracking records for the change night before payroll
Reset clocks, cameras, timers and access systems
Update hours on your Google Business Profile, website and booking tools
Confirm meeting times with international clients for the in-between week
Walk your premises at the new closing time and fix lighting gaps
Tell customers and staff about any changes a week ahead

Frequently asked questions

Do staff on night shifts get paid for the extra hour?

Hourly workers usually expect pay for all hours worked, and the change night adds one. The exact rules depend on your contracts and local employment law, so check official guidance and tell staff in advance how you will handle it.

Should I change my opening hours for winter?

Only if your data or customers suggest it. Compare sales by hour before and after last year's change. If late hours rarely cover costs, shorter evenings or earlier openings may suit you better.

Will my booking system update automatically?

Most online booking tools handle the change based on your time zone setting, but check that the zone is correct and that your availability matches your new hours. Look at a few existing bookings around the change dates to be sure.

Why do meetings with US or UK clients go wrong in early November?

Because the UK and the US change on different dates, the usual time difference is one hour shorter for about a week. Confirm call times in both time zones during that week.

The bottom line

The clocks going back is a small event with a lot of knock-on effects. Note the 2027 dates, review your opening hours with real data, plan overnight rotas and pay, update every clock and online listing, and check your lighting at the new closing time.

Spend an hour this week filling in the template and sharing it with your team. When the change arrives, your business will run on the right time, with the right hours and a well-lit welcome for the darker months ahead.