Elden Ring is FromSoftwares most ambitious project yet. Not only does the open-world adventure RPG contain a massively sprawling map with more challenging boss fights than ever, but it also introduces a dynamic day and night cycle. This new mechanic isnt just aesthetic, as the time of day can drastically affect the content of particular zones. By visiting Sites of Grace, players can alter the time of day to unlock this otherwise hidden content.

https://screenrant.com/elden-ring-locations-passing-time-unlock-content-guide/