Fw: [HOMEVIS] Daylight savings time

["Mark McCall" <mark@xxxxxxx>]

----- Original Message -----
From: "Craig Chadwick" <csi@xxxxxxx>
To: <homevision-users@xxxxxxx>
Sent: Wednesday, September 05, 2001 3:14 AM
Subject: [HOMEVIS] Daylight savings time


>
> This message is for HomeVision users outside the United States.
>
> HomeVision can automatically adjust the clock and sunrise/sunset times
when
> daylight savings time (DST) starts and stops.  However, HomeVision
does
this
> based on the United States conventions of starting DST on the first
Sunday
> in April and ending it on the last Sunday in October.  Other countries
use
> different conventions, and HomeVision's automatic adjustment won't
work
> properly for them.  For example, in Europe, DST starts on the last
Sunday
in
> March (it ends the same time as in the U.S.).  We plan to support
non-U.S.
> DST conventions in the next HomeVision version, which will come out
within
a
> few months.  In the meantime, here is a work-around you can use.
>
> If you disable the automatic DST option (using the User Location
screen
> under the Configure menu), HomeVision won't change the clock.  You can
> change it manually on the appropriate days, or place commands in your
> schedule to set the clock ahead or back.  However, HomeVision won't
know
> when you are in DST, and will therefore calculate sunrise and sunset
times
> incorrectly (these times are an hour later during DST).
>
> If you live in a country where DST ends the same time as the U.S.,
there's
a
> work-around that will work most times of the year.  When DST is active
in
> both countries (as it is now), you can enable HomeVision's automatic
DST
> adjustment, then download the schedule into HomeVision.  If you
previously
> had this option disabled, HomeVision will immediately move the clock
ahead
> one hour.  Reset the clock to the correct time using the Controller
> Time/Date screen under the Configure menu.  HomeVision will now
properly
> calculate sunrise and sunset times, and will also set the clock back
an
hour
> on the last Sunday in October.  Thus, everything will work correctly
until
> next spring (when HomeVision will be a week late in setting the clock
> ahead).
>
> Thanks,
>
> Craig Chadwick
> President
> Custom Solutions, Inc. (a.k.a., HomeVision)
> mailto:csi@xxxxxxx
> http://www.csi3.com
>
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