How to Calculate Split Shifts
A split shift has two or more work periods separated by a gap when you are off duty. Calculate each work period separately and add only the time that should count as work, rather than counting the gap automatically.
Practical timekeeping guide · ShiftHours
Calculate each work block
Suppose you work 7:00 AM–11:00 AM and then 3:00 PM–7:00 PM. The first block is 4 hours and the second is 4 hours, for 8 hours total worked. The four-hour gap between 11 AM and 3 PM is not included in this example.
If unpaid breaks occur within a work block, subtract those breaks according to the applicable policy.
Keep gaps distinct from breaks
A long off-duty gap between work blocks is not necessarily the same as a meal break during a continuous shift. Record the start and end of each block so the total is transparent.
Workplace rules may treat split shifts in specific ways for pay or scheduling. A duration calculator cannot determine those legal or contractual requirements.
Add blocks using minutes
Convert each work block into minutes and add the results. Four hours plus four hours equals 480 minutes, or 8 hours. This approach is useful when the blocks have different minute values.
Do not use the earliest start and latest finish as the total worked time if there is a long off-duty gap between them.
Track the day clearly
Keep separate entries for each block in your timesheet. Use the calculator for each segment, then add the net totals or use a spreadsheet to sum them.
Use the free ShiftHours work hours calculator to calculate shift length, subtract unpaid breaks, and view decimal hours. For weekly totals, try the weekly calculator.
Worked example: split shift
A person works 8:00 AM–12:00 PM and returns 4:00 PM–8:00 PM. The two work periods total 4 + 4 = 8 hours; the four-hour gap between them is not counted as work time unless the relevant arrangement says otherwise.
Related resources
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