The fragments can be found in the various Elemental Temples scattered across the Island. Most, if not all, are booby-trapped. For example, the Epochal Fragment can only be acquired during low tide. The fragments are heavily weathered, completely untended for thousands of years. During use however, the fragments shine as in their former glory, shedding away years of decay.
Each fragment as faint temporal abilities. As their name's suggest, each has a unique effect on time when channeled with energy.
Fleeting- Slow everyone else (make yourself fast)
Enduring- Freeze an object in time
Imminent- See the near future
Epochal- See the far past
Hastened- Speed everyone else (slow yourself down)
Erstwhile- Reverse an object in time.
As you may have noticed, there is a lack of eye holes. This is intentional. The user must focus to maintain control of the mask. Blinded to the present, the past and future become more clear in the mind's eye.
After each use, the Mask of Time resets itself to a previous time in the past... the time after the pieces were hidden. Instead of "flying" to their pedestals after each use, as pitched in the podcast, the pieces simply "phase" home.