Time Calculator
Calculate time duration, add/subtract time, convert time formats, and perform time arithmetic. Perfect for scheduling, time tracking, and time calculations.
Time Calculator
Time Calculation Results
Enter your times to calculate duration
Time Calculator Information
Calculation Types
- • Duration: Calculate time between two times
- • Add Time: Add time to a base time
- • Subtract Time: Subtract time from a base time
- • Convert: Convert time to different formats
Common Uses
- • Work Hours: Calculate work duration
- • Payroll: Convert to decimal hours
- • Scheduling: Plan meeting durations
- • Time Tracking: Track project time
- • Travel Time: Calculate journey duration
About the Time Calculator
Our free time calculator adds or subtracts hours, minutes, and seconds, or finds the duration between two times. Use it for payroll, timesheets, travel time, and project tracking. Enter start and end times for duration, or a base time plus time to add or subtract. Results show total hours, minutes, seconds, and decimal hours. For converting time to decimal for payroll, use our time to decimal calculator.
You may also find our time to decimal calculator useful.
Frequently Asked Questions
How do I add or subtract time?
Select "Add Time" or "Subtract Time", enter the base time and the hours/minutes/seconds to add or subtract. The calculator gives the resulting time.
What is duration in decimal hours?
Decimal hours express duration as a decimal (e.g. 1h 30m = 1.5 hours). Useful for payroll and billing. Use our time to decimal calculator for payroll conversion.
Can I calculate time across midnight?
Yes. If the end time is before the start time (e.g. 23:00 to 01:00), the calculator treats it as crossing midnight and gives the correct duration.