⏰ Time Calculator
Add, subtract, and convert time with precision. Calculate time differences and perform time arithmetic.
Time Calculator Features
➕ Time Arithmetic
Add or subtract hours, minutes, and seconds. Perfect for calculating work hours, project time, or scheduling.
⏰ Time Differences
Calculate the exact time difference between two times, including support for times that cross midnight.
🔄 Unit Conversion
Convert between seconds, minutes, hours, days, and weeks for any time-related calculations.
Time Calculator FAQ
How do I calculate overtime hours?
Use the time difference calculator. Enter your start time and end time, check "crosses midnight" if needed, and the result shows your total work time. Subtract 8 hours for overtime.
Can I add multiple time periods?
Yes! Calculate the first addition, then use that result as the starting time for the next addition. Repeat as needed for multiple time periods.
What if the result is negative?
When subtracting time, if you subtract more time than you started with, the result will show as a negative time, indicating you went backwards.
How accurate are the calculations?
The calculator is precise to the second. All calculations handle proper time arithmetic including minute and hour rollovers automatically.