Books like It's About Time, Max!
Kitty Richards, Gioia Fiammenghi
It's About Time, Max! is 32 pages, about 35 minutes at 250 words a minute.
6 books to read next
How long each takes
The Poky Little Puppy 25 min 
Franklin and the Stopwatch 35 min 
The 13 Clocks 2.3 h 
The Story of Clocks and Calendars 53 min 
The House on Maple Street 35 min 
Just a Second 44 min Bar height shows length. Estimated at 250 words a minute.