Hours Calculator

Calculate your hours fast—no fuss, just results. Perfect for work, projects, or time tracking.

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Tool Icon Hours Calculator

Hours Calculator

Calculate duration between times or sum multiple time entries

Time Difference Mode

Enter start and end times to find the duration

Accurately handles overnight shifts
Calculation History:
No calculations yet
Time Measurement Tips:
Shift Work

Use Difference Mode for punch-in/out times.

Project Totals

Use Addition Mode to sum hours across days.

Overnight Shifts

Check 'Next Day' if working past midnight.

How to Use:
  1. Choose either Difference Mode or Addition Mode using the toggle button.
  2. Fill in the time values or durations in the input fields.
  3. Click "Calculate Hours" to generate the total breakdown.
  4. Review your result and save it to history if needed.

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About This Tool

I built this hours calculator because I got tired of doing the math in my head—or worse, on a sticky note. Whether you're tracking work hours, figuring out overtime, or just trying to see how much time you actually spent on a project, this thing does the heavy lifting. No fluff. No login. Just type in your start and end times, and it spits out the total hours. Simple as that.

Key Features

  • Calculate total hours between two times—down to the minute if you need it.
  • Supports overnight shifts (like if you start at 10 PM and finish at 6 AM).
  • Option to subtract break time so you’re not counting lunch or coffee runs.
  • Works in 12-hour or 24-hour format—your call.
  • No ads, no tracking, no nonsense. It runs right in your browser.

FAQ

Can I use this for payroll or billing?
Yeah, absolutely. A lot of freelancers and small teams use it to log billable hours. Just double-check the math if it's for official records—better safe than sorry.

What if I work across midnight?
No problem. Just enter the start time (like 11:30 PM) and end time (like 7:15 AM), and it’ll figure out the total correctly. It knows the day rolls over.