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A timelock is a device that would be used to contain an object. It was used by Prehistoric Humans. The Timelock creates a field that stops time for anything within it, essentially making escape impossible. Humans added a timelock onto the cage of The Primordial to ensure that he stayed locked in.
A reverse timelock does the same as a normal timelock, except that instead of stopping time within the field, it accelerates time exponentially, the extent of the acceleration is unknown, however it is worded that "millions of years" passed while the Ur-Didact and Chakas watched the prisoner fall apart as his body decayed from time going by.
- It shares the name and function with the timelock in the popular Doctor Who franchise.