Chronos is one of Tobey's robots that was built near the end of summer vacation. He first appears in Bummertime and returns in The Rise of Miss Power. The robot looks like a gold alarm clock with limbs. It was meant to stop time so summer could be prolonged. However, Chronos minsunderstood its directive and "stopped" time by destroying all kinds of clocks in the city.
Chronos" is based from the personification of Time in pre-Socratic philosophy and later literature. Chronos governed linear, chronological time, contrasted with the other Greek word for time, kairos, meaning the indeterminate moment that is right for something to occur.