How to coordinate the clock when dual-booting with Windows

Liam Proven lproven at
Sun Dec 10 23:44:11 UTC 2017

On 10 December 2017 at 21:59, Grizzly via ubuntu-users
<ubuntu-users at> wrote:
> Set the windows side to sync (third tab internet time) with the time server of
> your choice, that way if/when you boot Wondowz it will check first? (or maybe
> it will  change then check then adjust, who can tell with windowz)

Would that it were so simple.

Windows won't sync with a timeserver if the skew is over a certain
(quite small) limit. It also readily gets confused due to poor
geolocation tech and either thinks it's in one timezone but the
machine is in a different one, or guesses one or both of these based
on poor geolocation and gets them wrong.

There are multiple things which go wrong.

So I run a 3rd party app:

NIStime32 --

... and use it to sync manually to the NIS timeservers:

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