Non-24 Hour Lighting Timers?

[mrgrowguy]

Does anyone know of, or can link a timer that can do 18 hours of light and 12 hours of dark, ignoring the normal 24 hour day period?



I have a theory, but all timers I find will only work on a 24 hour cycle.



I don't want to give away the details of my theory [yet], just need a special timer for the lights.

 

[Quantrill]

A smart relay can perform this timing function if it has the "asynchronous pulse generator" function.

 

[ShroomKing]

Does anyone know of, or can link a timer that can do 18 hours of light and 12 hours of dark, ignoring the normal 24 hour day period?
I've seen some digital timers from Apollo I think that were on a weekly cycle. So you could set up non traditional lighting style on one.


I have a theory, but all timers I find will only work on a 24 hour cycle.



I don't want to give away the details of my theory [yet], just need a special timer for the lights.

 

[mrgrowguy]

Someone from another source enlightened me, use a weekly timer and do 18 on 6 off one day, then 6 off and 18 in the next day, then 12 on 12 off the following, etc.

Will still have to play with the seventh day OMG the pattern though. But it's a start in the right direction.

Thanks guys :)

 

[jinxjj]

Sounds like a pain in the ass to keep changing the same timer.

Can't setup the digital ones in the way you describe?

 

[Og Gong]

If you get a seven day digital or mechanical timer you can set it by hrs. You just have to act like you don't see the days. So say 18hrs on 12am to 6pm then 12hrs off from 6pm to 6am. Then on 6am off 6pm, etc. it's not hard to manipulate the schedule. I may be doing this to battle test a male.