Overnight shifts, breaks and daylight saving time: how to count the hours right

Published 2026-11-04

Most hourly shifts are easy to count. The awkward ones are the shifts that cross midnight, the breaks that may or may not be paid, and the two nights a year when the clocks change. These are the habits that keep the total right.

Which day does a shift that crosses midnight belong to?

For your own record, the simplest rule is to file the shift under the day it started. A shift from 22:00 on Monday to 06:00 on Tuesday is one shift of 8 hours, listed on Monday. Splitting it in two invites double counting and lost breaks.

Your employer may treat the same shift differently. For daily overtime, a premium that starts at a set hour or a pay period total, hours after midnight can count for the next day, or even the next week or period. That is why a premium or threshold can look odd on a payslip. Check how your payslip assigns the hours, and read the work hours tracker guide for totals by period.

What happens on the night the clocks change?

When clocks go forward, one hour is skipped. When they go back, one hour happens twice. A shift from 22:00 to 06:00 on that night is shorter or longer in real time than its clock times show. To keep the total right, do three things.

• Log the real start and end of the shift, not only the scheduled times.
• Add a short note on the shift, such as clocks changed, so you remember why the total differs.
• Count elapsed time between the start and the end, in the workplace's time zone, instead of subtracting clock times by hand.

The dates differ by country. GOV.UK lists those for the United Kingdom, and many places have no change at all. Whether you are paid for the real hours or the scheduled hours depends on your contract and local rules, so compare your payslip with the real elapsed time and ask if the two differ.

Which time zone should I use for a shift?

Use the time zone of the workplace, not the zone your phone happens to be in. If you travel, or work near a border between zones, a time recorded in the wrong zone moves every hour of the shift.

ShiftPaybook stores a time zone with each shift and does its calculations in that zone, including clock changes, so a 23 or 25 hour day is measured in real elapsed time.

Are breaks paid or unpaid?

It depends on the place and the contract. The U.S. Department of Labor explains that short rest breaks usually count as paid time and that meal periods generally do not when you are fully relieved of duties. GOV.UK explains that workers over a set shift length are entitled to a rest break, but the break is not necessarily paid. Check your local rules and your contract.

• Record each break with its start, its end and whether it is paid.
• Subtract unpaid breaks from the elapsed time and leave paid breaks in.
• A break that crosses midnight belongs to the same shift, so it comes off the same total.
• If you skipped a break or were called back, correct the record that day.

ShiftPaybook handles overnight shifts as one shift and lets you mark each break as paid or unpaid.

When should I round the hours?

Round once, at the end, and only by the method your employer uses. Rounding each piece separately drifts: three segments of 20 minutes add up to one hour, but rounding each to the nearest quarter hour gives 15 minutes three times, which is 45 minutes. Total first, then round.

The same goes for money. ShiftPaybook works with exact decimal amounts and rounds money to the currency's smallest unit.

Frequently asked questions

Is an overnight shift one shift or two?

One. Record the real start and end, and file it under the start date. How an employer splits the hours for overtime or premiums is a separate question that your payslip shows.

Do I get paid for the extra hour when the clocks go back?

It depends on how you are paid and on your contract. Some employers pay real hours worked and some pay the scheduled hours. Check your local rules and compare your payslip with the real elapsed time.

Does ShiftPaybook handle overnight shifts and clock changes?

Yes. An overnight shift is one shift, breaks can be paid or unpaid, and calculations use the shift's own time zone, including clock changes.

What if my phone changes time zone when I travel?

Log the shift in the workplace's time zone. The time on the clock where you work is the time your employer records.

Sources

Public bodies and Apple documentation that this article draws on:

• U.S. Department of Labor: Hours worked under the FLSA (Fact Sheet 22)
• GOV.UK: Rest breaks at work
• GOV.UK: When do the clocks change?

General information only, not legal, tax or payroll advice. Rules differ by country, region, contract and employer, so check your local rules before relying on a figure.