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Shift Hours Calculator — Free Online
Calculates total hours for shift workers including overnight and multi-day shifts.
How to Use the Shift Hours Calculator
- Enter your input values using the fields in the calculator above
- Select any additional options (units, format, timezone) if applicable
- Click the Calculate button to get your instant result
- Copy the result using the Copy button for use elsewhere
- Scroll down for real-world examples and explanations
About the Shift Hours Calculator
Calculates total hours for shift workers including overnight and multi-day shifts. This tool uses the proleptic Gregorian calendar and the IANA timezone database for accurate results across all dates, timezones, and leap years.
All formulas validated by Vipul Jaganiya, Computer Science expert in Calendar Mathematics and Timezone Engineering.