The Time Labyrnith (時の迷宮 Taimu Rabirinsu) is a location that can be manifested by Chronoa when she has unleashed the power of time. The only time Chronoa is shown using it is in the 10th chapter of Super Dragon Ball Heroes: Dark Demon Realm Mission! and its corresponding arcade game counterpart.
Chronoa manifested the Time Labyrinth in order to seal away the Demon Realm and prevent the newly restored Mechikabura from having his way. However, Mechikabura undid the Time Labyrinth soon afterwards and took Chronoa under his control.