I wouldn’t assume that much. There’s a lot of assumptions that control people’s behavior even though there isn’t a law about it.Pick your intended public land use jurisdiction. Be it state, federal, USFS, WMA or other... all have "daylight" hour restrictions on shooting... except when permitted under special circumstance/permission. It's one of those universally adopted rules that is safe to assume is in effect unless specifically allowed to the contrary.
For example, my dad thought there was a law for how much ammunition a hunting gun could hold for big game in Washington. I’m not aware of any actual law about that despite my efforts to find it. There’s a law for bird hunting, but not big game. When it comes to the laws, if it isn’t specifically stated illegal, it’s therefore legal. I was just perusing the Oregon websites and there wasn’t a mention of daylight/night hours (not that there couldn’t be mentioned elsewhere)