Emits

Weather

ringing the hours

ambiance

Swap day and night descriptions for nocturnal creatures

PCs out when it’s not their daylight cycle have reduced vision.

Add scent and sound descriptions to room descs

Make it so the time doesn’t match RL time (offset time to allow players from various timezones to be able to experience day and night. Or have day and night change more frequently (i.e. one hour RL time is two hours game time.)

Food

Any PC can eat whatever they want. But to heal they need to eat X of their 'type' of food (Could also make it so they heal faster if they do, but don’t require it).