Certain weapons (ghastly, legendary greatswords, etc) have effects that change or trigger only when night comes around. I know they’re currently bugged, but I’ve only seen my ghastly weapon’s ‘blue fire’ effect a small fraction of the time. And even if the weapons weren’t bugged, it feels like I only see night itself about 1/4th of the time.
As nice an idea as time-specific weapon effects are, I know I’m going to be incredibly disappointed if I make the ‘Eternity’ blade and only get to see the sunrise aspect of it 75% of the time. It would be very nice if we had a toggle of some kind on the Hero screen for weapon effects; ‘Force On’, ‘Force Off’, and ‘Natural’.