Can I calculate times exceeding 24 hours?
Yes, you can calculate times exceeding 24 hours without any issues. For example, 30 hours + 10 hours = 40 hours is fully supported. Results will be displayed as 40:00:00. Perfect for calculating long-duration projects or multi-day work hours.
Will negative time (minus) be displayed?
Yes, when subtracting times where Time 1 is less than Time 2, the result will be displayed as a negative value. Example: 02:00:00 - 05:00:00 = -03:00:00. This clearly shows delay time or time shortage. Useful for comparing planned vs actual time in project management.
Can I enter only minutes or seconds?
Yes, you can enter any combination of hours, minutes, and seconds. For example, '0 hours 30 minutes 0 seconds' is calculated as '30 minutes', and '0 hours 0 minutes 45 seconds' as '45 seconds'. Unspecified units are treated as 0, allowing flexible usage.
What happens if I enter values over 60 for minutes or seconds?
Values over 60 are calculated correctly. For example, '0 hours 90 minutes 0 seconds' is automatically calculated as '1 hour 30 minutes 0 seconds'. However, for accuracy, we recommend entering values in appropriate units for hours, minutes, and seconds.
Can I subtract break time from work hours?
Yes, use the time subtraction feature. For example, subtract 1 hour of break time from 9 hours of work time to get 8 hours of actual working time. If there are multiple break periods, first add them together, then subtract the total from work time.
Can I enter decimal times (e.g., 2.5 hours)?
This tool is designed for hours, minutes, and seconds input. For decimal format (2.5 hours), please convert to sexagesimal first. Example: 2.5 hours = 2 hours 30 minutes 0 seconds. This provides more intuitive input and clearer result display.
Can I add more than two times at once?
Currently, the tool supports adding or subtracting two times. To add three or more times, first calculate the first two, then add the result to the next time. This step-by-step approach ensures accurate complex time calculations.
Can I copy the calculation result?
Yes, the result is displayed as text, making it easy to copy. Click the result to select it, then press Ctrl+C (Mac: Cmd+C) to copy. You can paste it into Excel, Notepad, or other applications for recording and management.