As long as they have clean substrate, water, a hidey place, heat and food they really don't care what time it is. Lucky things have no appointments to keep!
You can always just keep another light on, far away from the cage like a floor lamp or something if you want to.
This is just something I have noticed, and if it is a coincedence then please ignore it, but most of the time when a new member here had a snake die on them, either it was a badly started Petco/Petsmart snake, they used a light, or both.
The light really isn't needed, and can make the cage too warm or too dry and can be a fire hazard if you aren't really careful.
This is just my personal opinion.
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I guess my snake is just lucky then. He hasn't died yet and I got him from Petco and have always used a light with him.![]()
I am not saying that EVERY Petco snake dies, or that EVERY snake with a light dies, but I have noticed that whenever a snake belonging to a new member dies, there is a fairly decent chance that it was a Petco snake, or had a light, or both.
That said, those lights have been found to injure a snake's eyes. So maybe a rethink about using them might be in order....