Estimate weekly overlap hours created by handover time between recurring shifts.
Shift Overlap Calculator
Formula
Weekly overlap hours = overlap minutes ÷ 60 × handovers per day × operating days
How to use the result
Overlap may be valuable for handover, briefing or surge coverage; whether it is required depends on the operation.
What the calculator does not know
These are operational arithmetic tools, not employment-law, collective-agreement, payroll, occupational-safety or human-resources advice. Breaks, rest periods, overtime, maximum hours, scheduling notice, minimum staffing and qualifications vary by jurisdiction, contract, sector and workplace; verify the rules that actually apply.
Improve the estimate
Keep the inputs used for the decision and compare the estimate with actual results. A simple calculator is most useful when it makes the assumptions visible enough to learn from the difference.