How to coordinate the clock when dual-booting with Windows

Grizzly Real_Grizz_Adams at
Mon Dec 11 07:23:53 UTC 2017

10 December 2017  at 20:41, Kevin O'Gorman wrote:
Re: How to coordinate the clock whe (at least in part)

>On Sun, Dec 10, 2017 at 12:59 PM, Grizzly via ubuntu-users <
>ubuntu-users at> wrote:
>> 10 December 2017  at 15:52, Colin Law wrote:
>> Re: How to coordinate the clock whe (at least in part)
>> >On 10 December 2017 at 15:45, Liam Proven <lproven at> wrote:
>> >
>> >> On 10 December 2017 at 10:42, Colin Law <clanlaw at> 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
>> UTC,
>> >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 re-sync
>> >the next time ntpdate or whatever it is that does the auto timesync ran.

>> Its on a tab in date/time that not many people visit, default is off

>> That's what I was hoping, but I cannot find anything about NTP in my
>Windows 10.

Must admit I was unsure if the same controls carry forward to later windoz, (I 
stopped at Win7) it looks like they do

only difference appears that you only see the internet time when you click 
"Change date time"

here it (now) has a number of possible time server, IIRC it came with only two 
(unreliable), the rest I added later

there is a reg entry 


the chosen NTP server does propagate to other Reg entries

but you can manually add direct in the dialogue if you don't want to delve in 

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