Time Calculator
Add, subtract, and calculate duration between times. Supports hours, minutes, and seconds.
计算器
结果
输入数值并点击计算
结果将显示在这里
Adding and Subtracting Time
Adding time with this calculator works like an adding time calculator: enter hours, minutes, and seconds in each column and it sums them, carrying excess seconds into minutes and minutes into hours. Time subtraction works the same way in reverse and handles cases where you subtract more minutes or seconds than are currently available.
The duration mode works as a clock calculator: enter a start time and an end time and it reports the elapsed time between them, including intervals that cross midnight. This is useful for shift tracking, workout timing, cooking, and planning schedules.
Because every calculation runs in hours, minutes, and seconds, this time calculator gives exact results for adding time and time subtraction without the manual carrying that makes clock math error-prone.
使用方法
工作原理
Add, subtract, and calculate duration between times. Supports hours, minutes, and seconds.
公式 / 计算方法
This calculator uses standard mathematical formulas for accurate results.
示例
Try the calculator above with your own values to see personalized results.