Time
From Hades 2 Wiki and Guides
Useful Pages:
Nocturnal Arms, their Aspects & Upgrades
All the Boons
Hades II Guides
Time represents how long it takes for certain actions to complete. Each (Location/Encounter) passes 1 
Time. Relationship activities such as 
Bath Salts, 
Twin Lures, and 
Ambrosia can also advance time.