A split shift, checked from start to finish
Two shifts can share a day without turning the gap between them into work.
The sample record
| Session | Start | End | Net minutes |
|---|---|---|---|
| Morning | 08:00 | 12:00 | 240 |
| Afternoon | 13:00 | 17:15 | 255 |
Add only the recorded sessions
The hour from 12:00 to 13:00 is outside both shifts. It is not part of their gross spans and must not be deducted again as an unpaid break. Treating the day as 08:00–17:15 without recording the gap would instead count 09:15.
Keep the rows useful
Use two shift records and add a label or note if the sessions belong to different tasks. Both contribute to the same start-date daily total. If the second session accidentally starts at 11:45, the overlap needs review; adding the two complete spans would count the shared fifteen minutes twice.
Use this example
Open related toolFrequently asked questions
Do I subtract the 12:00–13:00 gap again?
No. The gap lies outside both recorded shifts, so the 08:15 combined duration already excludes it.
What if the afternoon row starts at 11:45?
It overlaps the morning shift by fifteen minutes. Correct the overlapping record before using a final total.
Sources and method
- NIST SP 330, Section 4, Table 8Time-unit definitions only; not a payroll authority or product endorsement.
- Original worked calculationSynthetic example data, explicit input rules and direct integer-minute arithmetic.
Keep going
Time card calculator
Build a dated time card with multiple shifts, paid and unpaid breaks, local projects, CSV import and PDF or JSON exports.
Shifts, breaks and labels
Add dated shifts, multiple paid or unpaid breaks, project labels and notes, and resolve overlaps without losing the record.
Worked time-card examples
Browse twelve checked examples of split shifts, overnight breaks, date boundaries, decimal durations and file review.