3 ms·
As long as it's not 2^32 seconds (~136 years) late/early, NTP will still be able to save the devices it runs on! [0] [0] https://rachelbythebay.com/w/2017/09/2
by moviuro 9y ago
As long as it's not 2^32 seconds (~136 years) late/early, NTP will still be able to save the devices it runs on! [0]
[0] https://rachelbythebay.com/w/2017/09/27/2153/ https://rachelbythebay.com/w/2017/09/27/2153/
- Piskvorrr 9y agoThese are devices from simpler times: no networking stack, not even an OS, sometimes not even firmware, just the basic function encoded with transistors. There's literally nothing to run on. Think water heaters, not RPi.
- moviuro 9y agoI know! Though strangely, my own kitchen appliances didn't participate in the continental time-shift (my microwave oven is still ticking correctly). And my remark was more: even NTP can't save ou if you shift the time too much, so it's a good thing it's only ~6 minutes so far.
- cesarb 9y ago> even NTP can't save ou if you shift the time too much, so it's a good thing it's only ~6 minutes so far. Only for the initial step, or if the frequency of the quartz crystal is too fast/slow. The NTP daemon continuously adjusts the clock frequency, so if it was already running and synchronized, the shift will never be more than a few milliseconds.
- zaarn 9y agoProbably not considering some of these used a stepper motor to drive their clock that was coupled to the grid frequency. These devices don't have any computing power.