Elapsed Time Calculator
A live counter since — or until — any moment. Also computes elapsed time between two fixed moments.
Elapsed since
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小时数
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分钟数
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时钟
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Use it as a shift clock
Clock in at 9:00? Set it once and watch the worked-hours counter run — useful for hourly workers tracking their day without a punch system. The hours readout is decimal, ready for a timesheet.
Frequently asked questions
What is elapsed time?
Elapsed time is the amount of time between a start moment and an end moment — 2 h 45 m from 1:15 PM to 4:00 PM. Here it's measured live against the current clock since (or until) the moment you enter.
Why does the answer keep changing?
In “since/until now” mode the calculator re-evaluates every second against your device clock — it's a live counter, like a shift countdown.