DST -- Dual booters beware!

  • Thread starter Thread starter Puppy Breath
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Puppy Breath

Hmm. Both Vista and XP updated themselves here. I didn't have to change
either one manually.
 
Hugh Wyn Griffith said:
DST -- Dual booters beware!

I booted up to XP Pro this morning and it put the clock forward by one
hour ..... that's the good news.

I booted up later this morning into VISTA and it put the clock forward
one hour ... that's the bad news ......

Probably doesn't need VISTA to do this -- anyone else run into this
problem?

This is because neither OS can be sure the other has updated the clock (in
all honesty they're not aware of each others existence). This happens when
dual booting with any collection of operating systems.
I hope it doesn't happen every time I switch OS's today ......

Each OS will change the clock once, the same way they'd do it if only one
was installed. It just so happens you have two installed and so it gets put
forward twice.

Join the campaign scrap summer / savings time. 8-)

--
Paul Smith,
Yeovil, UK.
Microsoft MVP Windows Shell/User.
http://www.windowsresource.net/

*Remove nospam. to reply by e-mail*
 
Hugh said:
DST -- Dual booters beware!

I booted up to XP Pro this morning and it put the clock forward by one
hour ..... that's the good news.

I booted up later this morning into VISTA and it put the clock forward
one hour ... that's the bad news ......

Probably doesn't need VISTA to do this -- anyone else run into this
problem?

I hope it doesn't happen every time I switch OS's today ......
Yeah, same here. I have to let it synchronize to the internet time to
undo what Windows Vista did.
 
Hmm. Both Vista and XP updated themselves here. I didn't have to change 
either one manually.

That's what I was saying happened to me. BOTH applied the update so I'm
now one hour ahead of DST.

See Paul's message here.
 
Paul Smith said:
This is because neither OS can be sure the other has updated the clock (in 
all honesty they're not aware of each others existence).  This happens when 
dual booting with any collection of operating systems.

Yes I could see why it happened but I don't recollect anyone mentioning this
in all the messages I have seen about DST and the date changes and I see a lot
of messages in different places!
 
Hugh said:
DST -- Dual booters beware!

I booted up to XP Pro this morning and it put the clock forward by one
hour ..... that's the good news.

I booted up later this morning into VISTA and it put the clock forward
one hour ... that's the bad news ......

Probably doesn't need VISTA to do this -- anyone else run into this
problem?

I hope it doesn't happen every time I switch OS's today ......

This happened to me today as well. I just assumed that Vista screwed up
and sprung forward 2 hours. What you say makes sense, even if it is
annoying. I just manually set it back an hour, but I should have forced
Vista to do a time check.
 
DST -- Dual booters beware!

I booted up to XP Pro this morning and it put the clock forward by one
hour ..... that's the good news.

I booted up later this morning into VISTA and it put the clock forward
one hour ... that's the bad news ......

Probably doesn't need VISTA to do this -- anyone else run into this
problem?

I hope it doesn't happen every time I switch OS's today ......
 
Uzytkownik "Paul Smith said:
This is because neither OS can be sure the other has updated the clock (in
all honesty they're not aware of each others existence). This happens
when dual booting with any collection of operating systems.


Not exaclty. Linux rely on RTC working at GMT, so it adjust time without
changing hardware RTC. I wonder why Vista doesn't do it that way?
 
Been happening to me since I first started dual booting XP and ME. It
changes only once per operating system. You can set it back the 1 hour and
everything will be okay, or wait until your next internet update and it will
be corrected for you. The time is stored in your BIOS and updated by
Windows who doesn't know or care that you had another system do it. If they
had sharp programmers, all they would do is force an internet update on
first boot when after the scheduled change over. Not complicated, but does
require thought.
 
DST -- Dual booters beware!

I booted up to XP Pro this morning and it put the clock forward by one
hour ..... that's the good news.

I booted up later this morning into VISTA and it put the clock forward
one hour ... that's the bad news ......

Probably doesn't need VISTA to do this -- anyone else run into this
problem?

I hope it doesn't happen every time I switch OS's today ......
On a dual boot system, turn off adjust for DST in one of the systems.
Problem solved.
 
DST -- Dual booters beware!

I booted up to XP Pro this morning and it put the clock forward by one
hour ..... that's the good news.

I booted up later this morning into VISTA and it put the clock forward
one hour ... that's the bad news ......

Probably doesn't need VISTA to do this -- anyone else run into this
problem?

I hope it doesn't happen every time I switch OS's today ......

Hugh:

It is normal to have that happen.

I multi-boot between 6 op systems. I first booted my Vista main install
which did the time update, and then booted into the other 5 installs and had
to set the clock back one hour in each of the 5.
 
On a dual boot system, turn off adjust for DST in one of the systems.
Problem solved.

It happend to me too...turning off DST in one of the systems
looks like a real good idea!

By the time I figure out how to reprogram all the clocks in my house...
it'll be time to turn them back again <g>
 
In message <[email protected]> Hugh Wyn
Griffith said:
That's what I was saying happened to me. BOTH applied the update so I'm
now one hour ahead of DST.

Then a few minutes later the automatic time service will notice your
clock is off and correct it. Pretty much a non-event for most
dual-booters.
 
In message <[email protected]> "Andrea"
Not exaclty. Linux rely on RTC working at GMT, so it adjust time without
changing hardware RTC. I wonder why Vista doesn't do it that way?

Legacy -- There would be people screaming about how it confuses
dual-booters.
 
Been happening to me since I first started dual booting XP and ME.

So people have been saying.

I've been dual booting for donkeys years and never encountered it nor
have I seen it mentioned recently with all the publicity for DST
changes and the number of people who are dual booting VISTA and XP.
 
I have to let it synchronize to the internet time to 
undo what Windows Vista did.

I gather that will do it but I turned that off when there was a bug in
Windows that caused synch to give the wrong time!

I just reset it manually.
 
I booted up to XP Pro this morning and it put the clock forward by one
hour ..... that's the good news.

I booted up later this morning into VISTA and it put the clock forward
one hour ... that's the bad news ......

Probably doesn't need VISTA to do this -- anyone else run into this
problem?

I hope it doesn't happen every time I switch OS's today ......

Hugh:

It is normal to have that happen.

I multi-boot between 6 op systems. I first booted my Vista main install
which did the time update, and then booted into the other 5 installs and had
to set the clock back one hour in each of the 5.

In case you're interested: I believe that is because MS likes to store the
time in the BIOS as local time. So, each time you boot (for the first
time) an MS OS it will 'correct' the time. Linux likes to store BIOS time
as UTC (although it will indeed tolerate local - that's usually an install
option); so Linux simply makes the proper time adjustment to local at
bootup from the BIOS time. I've booted three different Linux systems on
one computer today, and each one showed the proper time.
 
quoting:
DST-- Dual booters beware!

I booted up to XP Pro this morning and it put the clock forward by one
hour ..... that's the good news.

I booted up later this morning into VISTA and it put the clock forward
one hour ... that's the bad news ......

Probably doesn't need VISTA to do this -- anyone else run into this
problem?

I hope it doesn't happen every time I switch OS's today ......


I learned this years ago, to solve I just disabled the automatic dst
setting on all other OSes other than the primary OS.
 
Paul Smith said:
Each OS will change the clock once, the same way they'd do it if only one
was installed. It just so happens you have two installed and so it gets put
forward twice.


You would think that Windows would be smart enough to first check with
an Internet Time Server to see if the time had already been updated.
 
Puppy said:
Hmm. Both Vista and XP updated themselves here. I didn't have to change
either one manually.

Not everyone has had the same experience, but from the research I did,
Vista is supposed to already have the new DST time changes in it.

--
Priceless quotes in m.p.w.vista.general group:
http://protectfreedom.tripod.com/kick.html

Most recent idiotic quote added to KICK (Klassic Idiotic Caption Kooks):
"DRM is not added to anything in Vista."

"Good poets borrow; great poets steal."
- T. S. Eliot
 
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