Explains how to measure time with a clock, from how to read an analog clock to breaking down the hours of the day.

A boy goes to live with his magician uncle in a mansion that has a clock hidden in the walls which is ticking off the minutes until doomsday.

Humorous text explains the concept of time, from seconds to hours on both analog and digital clocks, from years to millennia on the calendar.

"Yo-kai are everywhere--they are even hidden throughout the pages of this book! See how many hidden Yo-kai you can find. But watch out! They love to make mischief!"--Page 4 of cover.

"A captivating, surprising history of timekeeping and how it has shaped our world. For thousands of years, people of all cultures have made and used clocks, from the city sundials of ancient Rome to the medieval water clocks of imperial China, hourglasses fomenting revolution in the Middle Ages, the Stock Exchange clock of Amsterdam in 1611, Enlightenment observatories in India, and the high-precision clocks circling the Earth on a fleet of GPS satellites...

"When twelve-year-old Reuben finds a peculiar, magical watch that has the power to turn its wearer invisible, he's propelled on the adventure of a lifetime"--

This book explores what time means and how it has been measured, from the waggles of a honeybee to the workings of an atomic clock.

Hickory dickory dock. Pete the Cat went up the clock! The clock struck one. The cat went down. Hickory dickory dock.