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Re: Older Active Home (v 1.3) / DST Question

Ok, I've posted a similar article on
comp.home.automation concerning
the Smarthome 1132CU.  I think the last
advise, shut off DST and set
the time zone one zone further to the
east should work.  However, if you do
in the springtime, and don't update the
time in the module between March 11
and April 1, everything should just
continue to work.  With  the module
set to enable DST, it will switch to DST
on April 1. Again, unless you
change the module time, it should
continue to work properly.  In the Fall,
the same should happen.  Module time
will not change until Nov. 4, so
unless you update the time between Oct
28 and Nov. 3, it should still
work ok.  Am I right?   Does the program
automatically set the module
time to the computer time when it is
launched?  If so, don't launch during
the "black weeks".

BruceR wrote:
> First of all, my advice was backwards. You'd need to change it from
> Central Standard Time to Eastern Standard Time. Let's say you live in
> Texas and the sun sets (dusk) at around 6pm CST.  However, if you can
> change the CM11A's DST trigger dates that's all you need to do.
>  David White wrote:
>> Thanks for the response Bruce. I am confused about why I need to
>> change the timezone as you instruct below. Can you elaborate? Cheers!
>> BruceR wrote:
>>> Dawn/Dusk is indeed affected by DST. In fact that's the ole point of
>>> DST... to move dusk an hour later. Now, if dawn/dusk is based on a
>>> photo sensor then DST makes no difference but the calculated
>>> dawn/dusk will have the lights coming on an hour before sunset until
>>> it catches up. Simple solution if no patch is available is to simply
>>> turn DST off and manually change your timezone to the one immediatly
>>> west of you i.e. Central to Mountain (GMT -6 to GMT -7).
>>>  David White wrote:
>>>> Knowing that the dates for DST are changing in the US, I have been
>>>> trying to figure out if I need to do anything (or can do anything)
>>>> in my old Active Home setup.
>>>> I have a simple setup and only run macros from the CM11A module
>>>> which is not connected to my PC. My macros only run in relation to
>>>> Dawn/Dusk. I don't have any that are driven by specific times.
>>>> Do I need to change anything? It would seem that dawn/dusk does not
>>>> care about DST and such. So I would guess not. However, I did have
>>>> the DST checkbox checked when I downloaded macros into the CM11A. I
>>>> have no idea how the CM11A works so maybe I do have to make some
>>>> changes.
>>>> It seems that the UI of Active Home will permit me to manually enter
>>>> dates for begin/end of DST. The values shown today do not correspond
>>>> to those shown in my Windows setup (which has already been updated
>>>> to reflect the change in DST) so I presume that Active Home does
>>>> NOT get its info from Windows - or at least not directly. I'd
>>>> rather not have to manually change this year in and out. So if any
>>>> changes are needed, if this can be avoided, that would be great!
>>>> Thanks for you input/help.

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