Find the time between two clock times — in hours and minutes, decimal hours, and total minutes. Handy for timesheets and shifts.
Handles overnight shifts (end time earlier than start rolls to the next day). Decimal hours are what most payroll systems use. General information only.
Convert both times to minutes past midnight, subtract, and roll over the day if the end time is earlier than the start (an overnight shift). Subtract any unpaid break, then express the result as hours-and-minutes, decimal hours (for payroll), or total minutes.
Payroll multiplies pay rate by decimal hours — 8 hr 30 min is 8.5 hours. This does the conversion so you don't have to.
Yes — if the end time is earlier than the start, it assumes you finished the next day and adds 24 hours.
Related: hourly rate calculator · overtime pay calculator · date difference calculator · all free calculators.
Yes. The Time Duration Calculator is completely free, runs in your browser, and never asks for a signup, email, or download. Enter your numbers and the result updates instantly.
It uses standard formulas and recalculates the moment you change a value, so the math is exact for the inputs you enter. Treat the result as a reliable planning estimate; for decisions with legal or tax consequences, confirm the figures with a qualified professional.
Yes. The calculator is mobile-friendly and works on any phone, tablet, or computer — there is no app to install and nothing to save.
Yes. Scroll to “Add this free calculator to your site” above and copy the embed snippet to place the live calculator on your blog or website for free.
Last reviewed: September 2026. Free to use, no signup — Time Duration Calculator by ToolWise Digital.
Copy the snippet to embed the live calculator on your blog or website — free for any site. The small “Calculator by ToolWise Digital” credit line keeps it free; you're welcome to remove it, but we appreciate you leaving it.
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