Free Working Hours Calculator

Calculate working hours in seconds

Work out total hours from clock in/out times. Check compliance with UK 48-hour working week regulations.

1

Enter your working hours

UK law requires 20 minutes break for 6+ hour shifts

Working hours per day
8h 0m
40.0 hours per week
8.5h
total shift length
Within legal limit
48-hour week rule
How we calculated this
09:00 to 17:30 = 8.5h
Less 30 min break = 8h 0m per day × 5 days = 40.0h/week
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Break time compliance

System flags when breaks are required by law. Automatic reminders for 20-minute breaks on 6+ hour shifts.

48-hour week monitoring

Alerts when employees approach 48-hour average. Track opt-out agreements and working time compliance.

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UK working time regulations

What employers need to know

1

48-hour working week limit

Workers can't be forced to work more than 48 hours per week on average (calculated over 17 weeks). Employees can opt out by signing an agreement, but this must be voluntary.

2

20-minute break for 6+ hour shifts

UK law requires a 20-minute uninterrupted rest break if working more than 6 hours. This break doesn't have to be paid unless your contract says so.

3

11 hours rest between shifts

Workers must have at least 11 consecutive hours of rest between working days. For example, finish at 11pm, can't start before 10am next day.

4

24-hour rest per week

Workers are entitled to one full day off (24 hours) every week, or two full days off every fortnight. Employers can choose which days.

5

Night workers limited to 8 hours

Night workers (working at least 3 hours between 11pm-6am) shouldn't work more than an average 8 hours in any 24-hour period.