Tickety Tock, known as Tickety for short, is Steve's alarm clock who lives on a nightstand in the bedroom of the Blue's Clues house. The '12' mark on her face is usually replaced by a symbol that relates to the episode's topic.
She loves counting different things and often invites the host and the viewers to help her with basic math. Tickety is very number-oriented and likes to keep schedules. She is responsible for waking the residents of the Blue's Clues house every morning by ringing her bells. She is best friends with Slippery Soap.
In the original series, Tickety was voiced by Kathryn Avery from 1996-2001 and by Kelly Nigh from 2001-2004.