How to coordinate the clock when dual-booting with Windows
clanlaw at gmail.com
Sun Dec 10 16:11:53 UTC 2017
On 10 December 2017 at 15:57, Peter Silva <peter at bsqt.homeip.net> wrote:
> can confirm, at least in older versions of windows, localtime
> (whatever timezone was set) was the time saved in the bios. Dunno if
> current windows versions have smartened up, but it never used to store
> in UTC.
> I agree that the sensible thing to do is for all OS's to always store
> time in UTC at the hardware level and do the timezone in the OS, but
> that's not how it was done before, might have improved in recent
I understand the original question now, the solution to MS's garbage
(though that might just be my view) system is tell Ubuntu to do the same,
using timedatectl as suggested by Xen. I gather there are windows registry
mods one can do to change the way Windows does it, though there is debate
about the reliability of that.
Thanks to all for the education.
> On Sun, Dec 10, 2017 at 10:52 AM, Colin Law <clanlaw at gmail.com> wrote:
> > On 10 December 2017 at 15:45, Liam Proven <lproven at gmail.com> wrote:
> >> On 10 December 2017 at 10:42, Colin Law <clanlaw at gmail.com> wrote:
> >> >
> >> > The clock is not normally an issue when dual booting.
> >> It bally well is for me!
> >> E.g. if it's set to local time, both OSes move the system clock
> >> forward or backwards when daylight savings times begins or ends,
> >> resulting in a 2h discrepancy.
> >> My solution: minimize use of Windows. I boot it a couple of times a
> >> year, if that, normally.
> > Interesting, I have never seen that. I assumed the system clock was in
> > and so would not change with DST. You may be right about that though, I
> > have no evidence either way. However I would have thought it would
> > the next time ntpdate or whatever it is that does the auto timesync ran.
> > Colin
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