如何计算Stopwatch Timer
learn.whatIsHeading
A stopwatch measures elapsed time with start, stop, and reset functions. Digital stopwatches measure to 1/100th of a second (10ms). Lap times measure split segments. Used in sports, cooking, science experiments, and productivity.
分步指南
- 1Records timestamp when started
- 2Elapsed = current time − start time
- 3Lap time = current time − last lap timestamp
- 4Accuracy limited by browser/OS timer resolution (~1–4ms)
例题解析
输入
Start 09:00:00 · Stop 09:14:32
结果
Elapsed: 14 minutes 32 seconds
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