Programming for DST

[seacordean]

Is there a way to set up programs to adjust for DST (i.e., end/To 1 hour later when in DST)? I thought of using date ranges to determine DST, but a. it means programming for every year (since date ranges are specific to a year) and b. DST is a different date every year based on how Sundays fall on the calendar.

 

thx

[jerlands]

I'm not certain I understand the question but ISY adjusts DST and can be found under "Configuration" Tab System/Clock in console.

[Brian H]

My night on scene that is Sunset -10 minutes adjusted automatically when DST started.

I also have my time set by the NTP Server through the Internet. I don't know if that has any bearing on it.

[iostream212]

Bump.

I was trying to do a program based on DST as well. Here's my scenario:

During the winter months sunset means it is dark. I want to activate a scene so my house is lit when I get home.

During DST when I get home it is light and I don't need those lights activated.

 

Any way to do the following?

If days are M-F and time is > 6:30pm and not day light savings time

Then turn on living room scene for 1 hour

 

Basically trying to mimic the ELK programming option of 'Is Dark outside'.

Thanks!

[Sub-Routine]

Hi iostream212,

 

The ISY can use Sunset but not DST.

 

If
       On Mon, Tue, Wed, Thu, Fri
       From    Sunset 
       To      Sunrise (next day)
   And Time is  6:30:00PM

Then
       Set Scene 'Living Room' On
       Wait  1 hour 
       Set Scene 'Living Room' Off

Else
  - No Actions - (To add one, press 'Action')

 

Rand

[oberkc]

Like sub-routine, I use sunrise and sunset. One could also use motion sensors (with built-in light sensors) to transmit a signal when "dark" to trigger the lights to come on. I understand that weatherbug also includes a configurable dark parameter which could be used to trigger lights (requires the weatherbug module).

[iostream212]

Hello guys,

Thanks for the ideas. I like both those thoughts and will probably use Sub-Routine's sub routine coupled with oberkc's idea for the motion sensor light sensor. Thanks!