Shift / Schedule Calculator

Start time + duration → end time (handles midnight).

Calculate work shift hours

This shift calculator helps estimate the length of a work shift, including start time, end time, and breaks. It is useful for schedule planning, time estimates, staffing, and quick payroll checks.

When to use it

Use this tool when you need a quick estimate of hours worked during a shift. It can help compare schedules, plan coverage, or check whether a time entry looks right.

How to use it

  1. Enter the shift start time.
  2. Enter the shift end time.
  3. Add any unpaid break time, then review the total hours.

Common uses

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Frequently asked questions

What does a shift calculator do?

It estimates the total time between a shift start and end time, with optional break deductions.

Can this calculate payroll?

It can help estimate hours, but final payroll should be calculated through your approved payroll process.

This tool is for quick estimates. Final pay, overtime, and payroll calculations should follow your employer policies and applicable law.