It's About Time!

In It’s About Time!, narrator Albert Einstein takes kids through time—literally. Measuring time is explored, from the stone circles and giant pyramids of ancient cultures to hourglasses and sundials to early time pieces and watches to atomic clocks. The book explains why there are 12 months a year, 24 hours in a day, 60 minutes in an hour, and 60 seconds in a minute. And seven days in the week.