Lighting for 12 hour days instead of 24?

[Cornerboy]

I'm curious if anyone has tried 12 hour lighting cycles instead of 24-hour lighting cycles or has read about it? I'm thinking about trying it on my build primarily just so I can see my fish. This would be in a mixed lps softie tank. Thinking about starting to ramp my lights up at 5:30 for an hour and have them start winding down at 10:30 and off at 11:30, AM & PM. The refugium would do the opposite. I'm sure some folks done this before but I'm not even sure how to go about searching. Any thoughts, issues?

 

[ChrisOFL]

There is no such thing as a 24-hour light cycle unless you are including a moon cycle. I used to run my lights from 7AM-7PM. I wouldn't go over 14 hours a day between sunrise and sunset. Think about real word conditions, have you ever experienced a day where sunrise is at 530AM and sunset is at 1030PM?

 

[Cornerboy]

There is no such thing as a 24-hour light cycle unless you are including a moon cycle. I used to run my lights from 7AM-7PM. I wouldn't go over 14 hours a day between sunrise and sunset. Think about real word conditions, have you ever experienced a day where sunrise is at 530AM and sunset is at 1030PM?

I get what you are saying. So, I take it you have not tried or read anything like this. To be clear, I'm asking about 4-6 hours of light, 6 hours dark, repeat experiences/knowlegde