Spread-over vs hours of work
Hours of work count only the time actually spent working. Spread-over counts the whole span in which the employee is tied to the workplace, gaps included. An employee who works 09:00–13:00, takes a 2-hour lunch and works 15:00–19:00 has worked 8 hours but has a 10-hour spread-over.
The distinction matters because the law regulates both. Daily hours are capped at 9 (Factories Act s.54) with overtime beyond; spread-over is capped separately so that an employer cannot keep a worker on premises for 14 hours by inserting long unpaid breaks. Both limits must be satisfied on the same day.
The legal limits
Section 56 of the Factories Act 1948 requires periods of work to be arranged so that, inclusive of rest intervals under s.55, they do not spread over more than 10.5 hours in any day. The Chief Inspector may in writing permit up to 12 hours for specified reasons. Section 55 separately requires a rest interval of at least half an hour after no more than 5 hours of continuous work.
Shops and Establishments Acts are state laws and their spread-over ceilings differ; many fix 10.5 or 11 hours, some allow 12 with conditions, and several require overtime to be paid for hours beyond the daily limit regardless of spread. The OSH Code 2020 leaves the daily hours and spread-over to be notified by the appropriate government within the 48-hour weekly cap. Check your state's working-hours rules before designing a shift.
- Factories: 10.5 hours spread-over (s.56), extendable to 12 only with written permission.
- Shops and establishments: state-specific, typically 10.5–12 hours.
- Rest interval: at least 30 minutes after 5 hours of work (Factories Act s.55).
- Spread-over is measured per day, from first in-punch to last out-punch.
Why spread-over matters for split shifts and payroll
Spread-over is the binding constraint on split shifts. A restaurant that wants a steward for lunch and dinner service must fit both blocks inside the state ceiling, which is why a 07:00–11:00 plus 17:00–21:00 pattern is usually unlawful while 11:00–15:00 plus 18:00–22:00 may be permitted.
For payroll the two figures are reported separately. Hours of work drive wages and overtime; spread-over is a compliance check that inspectors verify against the attendance register and the notice of periods of work. Attendance systems should store first-in and last-out for the day alongside paid hours so both can be produced on demand.
A machine operator is rostered 08:00–12:30, break 12:30–13:00, then 13:00–17:30. Hours of work are 9, the rest interval is 30 minutes after 4.5 hours, and the spread-over is 9.5 hours, within the 10.5-hour cap. If the supervisor extends the day to 19:00 for a rush order, hours become 10.5 (1.5 hours overtime at double rate) and the spread-over becomes 11 hours, which breaches s.56 unless permission has been obtained.
