Hours Calculator
Shift spans including overnight rollover.
Enter the required values above to see your result.
How the Hours Calculator works
The calculation follows the standard method used across the US — no shortcuts, no hidden assumptions. Here is exactly what happens behind the scenes:
Frequently Asked Questions
How does the Hours Calculator work?
Enter your numbers above and results update instantly using standard formulas, computed entirely on your device.
Is the Hours Calculator free to use?
Yes — completely free with no signup required, and it works on phones, tablets, and desktops.