General Home Automation DST and My Computers

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Subject Author Date
DST and My Computers EdwardATeller 03-11-07
Posted by EdwardATeller on March 11, 2007, 10:49 am
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Sorry if this has been covered already, but I am looking for a way to
deal with this DST issue. I thought I'd be able to simply synchronize
my computer clock with the NIST time servers after the switch over and
all would be well. Today I found out that won't work. Only one of my
5 computers has an OS that can be patched, so I am left with 4 Windows
OS's that will need manual adjustments unless I can figure something
out.

Syncing to GMT on the internet, and then running a variable offset
that is triggered by the calendar would work nicely. I suppose I
could write a perl script that does this, and then use task scheduler
to run it once a day. Maybe I could sync to the patched computer on my
network and not have to worry about the extra offset and calendar
logic. Is there a way to remotely sense an XP SP2 computer's system
time?


Posted by David White on March 11, 2007, 11:51 am
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(a) Download the timezone editor for Win98 from here
(http://www.softshape.com/cham/manual/tzedit.htm). It is a
self-extracting zip-executable. I would just extract the files into the
Windows directory and leave them there.

(b) Run tzedit.exe. It should pop-up showing our timezone (GMT - 8)
selected. If not, select it. Then press the edit button. Set the start
day to be Second Sunday of March at 2am. Set the last day to First
Sunday of November at 2am. Press OK, then close the Time Zone editor.

(c) Very important - you are not done yet. Right click the start bar
clock and choose adjust (or Date/Time from the control panel). Choose
another timezone (say Arizona) and press ok/apply. Then choose back our
real time zone (GMT - 8). This causes the info changed by step (b) to be
read.

You are done. This is a summary of the manual procedure shown at MS
(http://support.microsoft.com/kb/914387/).

David

EdwardATeller wrote:
> Sorry if this has been covered already, but I am looking for a way to
> deal with this DST issue. I thought I'd be able to simply synchronize
> my computer clock with the NIST time servers after the switch over and
> all would be well. Today I found out that won't work. Only one of my
> 5 computers has an OS that can be patched, so I am left with 4 Windows
> OS's that will need manual adjustments unless I can figure something
> out.
>
> Syncing to GMT on the internet, and then running a variable offset
> that is triggered by the calendar would work nicely. I suppose I
> could write a perl script that does this, and then use task scheduler
> to run it once a day. Maybe I could sync to the patched computer on my
> network and not have to worry about the extra offset and calendar
> logic. Is there a way to remotely sense an XP SP2 computer's system
> time?
>

Posted by Robert Green on March 11, 2007, 1:25 pm
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> (a) Download the timezone editor for Win98 from here
> (http://www.softshape.com/cham/manual/tzedit.htm). It is a
> self-extracting zip-executable. I would just extract the files into the
> Windows directory and leave them there.

As they point out at the site you've cited, folks may already have
tzedit.exe on their machines or CDs. I found two copies already on my
machine, one in Program Files, the other in the directory
tools\reskit\config on the Windows installation CD (in case DL'ing from a
site named "softshape" gives anyone the willies or the heebie-jeebies! (-:

Oddly enough, the two files I found have different creation dates (4/3/98
and 5/11/98) and are capitalized differently but Windiff says they're
identical.

> (b) Run tzedit.exe. It should pop-up showing our timezone (GMT - 8)
> selected. If not, select it. Then press the edit button. Set the start
> day to be Second Sunday of March at 2am. Set the last day to First
> Sunday of November at 2am. Press OK, then close the Time Zone editor.
>
> (c) Very important - you are not done yet. Right click the start bar
> clock and choose adjust (or Date/Time from the control panel). Choose
> another timezone (say Arizona) and press ok/apply. Then choose back our
> real time zone (GMT - 8). This causes the info changed by step (b) to be
> read.
>
> You are done. This is a summary of the manual procedure shown at MS
> (http://support.microsoft.com/kb/914387/).

It's more than that, you've translated reams of MS registry-tweak geekspeak
into *usable* English! That article is one of the worst examples of
techno-twaddle I've ever seen.

Following your instructions I was able to reselect the DST box and my
correct time zone (Eastern, not Atlantic!) and Dimension4 is reporting the
correct time. Now I wait until November to see if it all really works!

Thanks!

--
Bobby G.




Posted by EdwardATeller on March 11, 2007, 2:21 pm
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> (a) Download the timezone editor for Win98 from here
> (http://www.softshape.com/cham/manual/tzedit.htm). It is a
> self-extracting zip-executable. I would just extract the files into the
> Windows directory and leave them there.
>
> (b) Run tzedit.exe. It should pop-up showing our timezone (GMT - 8)
> selected. If not, select it. Then press the edit button. Set the start
> day to be Second Sunday of March at 2am. Set the last day to First
> Sunday of November at 2am. Press OK, then close the Time Zone editor.
>
> (c) Very important - you are not done yet. Right click the start bar
> clock and choose adjust (or Date/Time from the control panel). Choose
> another timezone (say Arizona) and press ok/apply. Then choose back our
> real time zone (GMT - 8). This causes the info changed by step (b) to be
> read.
>
> You are done. This is a summary of the manual procedure shown at MS
> (http://support.microsoft.com/kb/914387/).
>
> David
>
> EdwardATellerwrote:
> > Sorry if this has been covered already, but I am looking for a way to
> > deal with this DST issue. I thought I'd be able to simply synchronize
> > my computer clock with the NIST time servers after the switch over and
> > all would be well. Today I found out that won't work. Only one of my
> > 5 computers has an OS that can be patched, so I am left with 4 Windows
> > OS's that will need manual adjustments unless I can figure something
> > out.
>
> > Syncing to GMT on the internet, and then running a variable offset
> > that is triggered by the calendar would work nicely. I suppose I
> > could write a perl script that does this, and then use task scheduler
> > to run it once a day. Maybe I could sync to the patched computer on my
> > network and not have to worry about the extra offset and calendar
> > logic. Is there a way to remotely sense an XP SP2 computer's system
> > time?

Too bad I didn't just wait for your reply. Instead I found the same
solution with about three hours of work. Hopefully it will help
someone else.


Posted by Robert Green on March 11, 2007, 12:23 pm
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> Sorry if this has been covered already, but I am looking for a way to
> deal with this DST issue. I thought I'd be able to simply synchronize
> my computer clock with the NIST time servers after the switch over and
> all would be well. Today I found out that won't work. Only one of my
> 5 computers has an OS that can be patched, so I am left with 4 Windows
> OS's that will need manual adjustments unless I can figure something
> out.

I was surprised to find out that I had to manually change my time zone one
to the right to get Dimension4 to report the correct local time on a Win98
system. Out of *all* the devices in my house that keep time, only my
LaCrosse LED projection clock with a built-in radio to detect time signals
correctly reports the local time. My two other automagically setting
clocks (one Emerson, another WalMart something or other) didn't make the
jump but they have never been able to receive the time signal correctly
although the LaCrosse clearly does.

The autosets on my VCR's and DVD recorders didn't change although the cable
system seems to know the correct time. Now comes the joy of resetting
watches, cameras, voice recorders, PCs, car clocks, house clocks, medical
equipment, etc. I've begun a database of devices so I can use it as a
checklist and also store some of the more unusual setting methods ("tap 3
times then hold then press mode and set together with reset while adjusting
display and whistling Dixie" sort of nonsense) in one place. It's a
nuisance, to be sure, but it's probably a good idea to devote the time to
resynching clocks, inspecting and replacing batteries, etc.

I read somewhere that over $2 billion has been spent on patching to
accommodate the new DST start and end dates. I wonder how much energy it
will save?

> Syncing to GMT on the internet, and then running a variable offset
> that is triggered by the calendar would work nicely. I suppose I
> could write a perl script that does this, and then use task scheduler
> to run it once a day. Maybe I could sync to the patched computer on my
> network and not have to worry about the extra offset and calendar
> logic. Is there a way to remotely sense an XP SP2 computer's system
> time?

http://www.thinkman.com/dimension4/

Should do what you want to do. I've been running it for a least 5 years on
Win98 and it's been invisibly efficient. Says it works under XP but I can't
vouch for that. Also acts as network time server to synch other clocks
(haven't got that to work for me, though, but I expect it's a firewall and
protocol issue I am unwillingly to run to ground).

--
Bobby G.




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