Clock not in sync with system time about flipclock HOT 4 CLOSED

And when you switch to an other tab it counts with half speed. It looks like that the time shown is also depending on the script run time. It should be synced to the system time.

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• Try adding an alert("foo"); in your javascript Console. Counter will pause and resume afterwards.
• Try adding tons of flipclocks to one and the same page - the mere "load" of rendering all of these will cause several seconds of drift per minute.

In my case, I wanted to use it for counting down a lot of things... I think what's needed is for the countdown to instead of simply "counting" down 1 at a time, it needs to keep track of the target Date where it should reach 0.

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Why is this closed? I was about to open a similar issue as it is very much a problem for my application.

If the computer / browser is suspended the timer will be effectively paused. If you switch tabs, intervals are apparently slowed or at least scheduled with extremely low priorities. Which causes considerable drift over even a few minutes.

I am still looking at the code, but I suspect this is because Face depends on the interval being called exactly every second and setInterval makes no assurances of this. I will most likely be writing a custom face that adjust the counters according to the delta between timer start and now.

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@sskrla You can see issue #155 for a discussion (and a possible workaround) for what your experiencing.

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