jquery - Display time duration as hourly in Javascript? -

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i have program calculate downtime want start calculating starting point end downtime finish. e.g (0 5minutes ,49minutes, 1hr : 36minutes) methods can try ?

to time (in milliseconds) can call date.now(). store somewhere , call function again @ end. subtract start end , total time elapsed, in milliseconds. after that, rest simple math transform milliseconds seconds, minutes, hours , forth.


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