Time Calculator
Add, subtract, and convert time durations with our free calculator. Perfect for calculating work hours, event durations, and time differences.
First Time Duration
Second Time Duration
Frequently Asked Questions
How do I add or subtract time durations?
To add or subtract time durations, enter the hours, minutes, and seconds for both time periods in the respective fields. Click 'Add Times' to sum them up or 'Subtract Times' to find the difference. The calculator will automatically handle conversions and display the result in hours, minutes, and seconds format.
How do time unit conversions work?
Time unit conversions are based on standard time units: 1 hour = 60 minutes, 1 minute = 60 seconds. Enter a value and select its unit (hours, minutes, or seconds), and the calculator will automatically convert it to all other units. For example, 2 hours will be converted to 120 minutes or 7,200 seconds.
Why can't I get negative results in time calculations?
The calculator prevents negative time results because time durations are typically non-negative in real-world applications. When subtracting times, if the second duration is larger than the first, the result will be 0 to avoid negative time values.
What are common uses for the time calculator?
The time calculator is useful for many scenarios: calculating work hours, planning event durations, timing workouts or activities, determining time differences between events, converting between time formats for scheduling, and adding up multiple time periods for project planning.
How accurate are the time calculations?
The time calculator provides precise calculations down to the second. It handles all conversions using standard time units and ensures accuracy by performing calculations in total seconds before converting back to hours, minutes, and seconds format.
Can I use decimals in time calculations?
The calculator accepts only whole numbers for simplicity and accuracy. Instead of using decimals, break down your time into its components. For example, instead of 1.5 hours, use 1 hour and 30 minutes for more precise calculations.