They way i have it figured is trout kokes salmon steel is 1 hour before and 1 hour after. Bass, crappie, bluegill, cats are 24 hours. So as long as the lake/river/pond doesn't say closed from 1 hour after sunset to 1 before sunrise (which some do so no night fishing at all) you are good for the species that are fishable. Then there are some lakes that are open for anything 24 hours. just double check the regs or search through the reg book to find what you are after.