The sundial is a device found in all worlds in Vexx, which is used to change the time of day. To do so, Vexx is to simply walk onto the center, and then rotate the sundial by moving the anlog stick left or right. When finished, Vexx can leave by jumping off. Day is shown as a number of blue squares on the sundial's outer rings, while night is shown as purple, matching the colors of the sky during those times.
- Main article: Sundial Portal
When the sundial is set at the right time (between the two blue counters), a Sundial Portal opens.