Timesheets across midnight and multiple shift segments
How to Calculate Overnight and Split Shifts
Calculate elapsed work time accurately when a shift crosses midnight or contains two work segments and unpaid breaks.
Key point
Treat each shift segment as a start and end timestamp. If an end time is earlier than its start time, move the end into the next calendar day, then subtract only valid unpaid breaks.
- Keep the calendar date with every time entry.
- Calculate each split segment separately before adding them.
- Assign hours to the statutory workday and workweek defined by the governing rule.
Overnight example
A shift from 10:00 p.m. to 6:30 a.m. lasts 8.5 elapsed hours. After a 30-minute unpaid break, net worked time is 8.0 hours. Do not subtract 22:00 from 06:30 without advancing the date.
Split-shift example
Add 7:00 a.m.–11:00 a.m. and 3:00 p.m.–7:00 p.m. as two four-hour segments. The unpaid gap is not worked time. Keep any paid reporting or split-shift premium separate.
Workday and overtime boundaries
An employer’s established workday may not reset at midnight. Daily overtime and minimum-rest rules can therefore require more than a clock-duration calculation.
Related WageWise resources
Frequently Asked Questions
How are overnight shifts that cross midnight counted for daily overtime?
Most provincial standards treat the entire shift as belonging to the calendar day on which the shift commenced, preventing artificial shift splits across midnight.
Official sources
Rules can change and special occupations, agreements or facts can alter the result. Confirm the current official rule for the jurisdiction where the work is performed.