Where did you find it? I thought it was 24 hours. This is all from memory so I could be wrong. But, as memory serves, you go in and hunt in the evening and leave your stand for the morning. No problem with the rangers. You could NOT go in on say Thursday, lock your stand with the intention of hunting Saturday (etc).
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24 hours before and after "the hunt" is how I read it. It starts in September and ends in January.