Fimbulwinter creates a clean 3-year gap that you can track right from the start. When you access surviving fimbulwinter, the frozen landscape and atreus's visible aging immediately show how much time has passed. The environments tell most of the story here, with ice-covered landmarks forcing different routes and movement styles than before

Good to know that time flows differently across realms during this period. Places like vanaheim show this really well, with spring basically frozen in place while midgard deals with three back-to-back winters. Mimir drops hints about this timeline stuff throughout your journey, and keeping an eye on realm-specific changes helps piece together how fimbulwinter messes with time overall. Its pretty clever how the environmental changes and character growth naturally show the time passing, without needing exact dates spelled out

The best part about tracking time is watching how the frozen landscape affects everything from combat spots to climbing paths making each realm feel properly changed by these three brutal winters. Timing really matters here since this is all building up to ragnarök itself