The Time Eater (Sonic the Hedgehog) creating Time Holes, spacial rifts that allows people to travel through time and space to different locations and points throughout the timeline, even the faraway Planet Wisp.
The Time Eater (Sonic the Hedgehog) opening Time Holes to utilize its Warping Arm Attack, which appears at a specific point in the future.
The Door of Time (The Legend of Zelda) can only be opened by the Song of Time, but can allow anyone to travel back and forth of seven years.
The Gates of Time (The Legend of Zelda) are powerful artifacts that allow people to travel through time.
Starlight Glimmer (My Little Pony: Friendship Is Magic), casts a spell by using a magic scroll to open a time portal over the Cutie Map.