Time Calculator: Add and Subtract Hours and Minutes
Need to add time or subtract time fast? This free time duration calculator adds hours, minutes and seconds together, converts minutes to seconds, and shows decimal hours and minutes for payroll and time card math.
It runs in your browser as a free web app – no download, no account. Results update as you type, and one tap copies them into your invoice, spreadsheet or email.
How do I add hours and minutes?
Enter both durations, choose Add, and the total appears instantly.
Can I get decimal hours for payroll?
Yes. The tool shows decimal hours and decimal minutes next to the h:m:s result.