Prince of Persia - Sands of Time dagger. The Dagger of Time enables the wielder to reverse, stop, slow, and use various other time-related powers. The mechanism used to activate the Dagger is a blue and gold accented button located in the center of the Dagger's hilt. It, like the Medallion and Staff of Time, protects its wielder from the effects of the Sands of Time. Doubling as a weapon, the Dagger of Time is the only weapon that can harm and recapture Sand Creatures.