Re:Ntpd won't save you from one particular rogue bit
by dspillett on Thursday September 28, 2017 @07:21AM
(#15356274)
I can't say I've ever had a PC with a particularly accurate RTC, though in recent years I've run NTP on everything I can so not noticed any effects.
Anecdotally clocks in small mobile devices like phones do seem less accurate though, at least when they don't have access to the network to update themselves. I've not looked into it but assumed temperature variances, which a device like a phone will experience to a larger extent, were part of the problem.
Of course phones syncing with the network relies on their clocks agreeing with the rest of the world - for some months my provider seemed to be a minute or so behind which meant I had to adjust a little when gauging if I was just going to make train I was rushing towards or if I'd likely missed it leaving already...
Anecdotally clocks in small mobile devices like phones do seem less accurate though, at least when they don't have access to the network to update themselves. I've not looked into it but assumed temperature variances, which a device like a phone will experience to a larger extent, were part of the problem.
Of course phones syncing with the network relies on their clocks agreeing with the rest of the world - for some months my provider seemed to be a minute or so behind which meant I had to adjust a little when gauging if I was just going to make train I was rushing towards or if I'd likely missed it leaving already...