Books like A Time Of Changes
Robert Silverberg
A Time Of Changes is 214 pages, about 3 hours 55 minutes at 250 words a minute.
12 books to read next
How long each takes
The Martian Chronicles 4.8 h 
The Caves of Steel 4.5 h 
Gateway 5.7 h 
Citizen of the Galaxy 5.1 h 
Glory Road 5.3 h 
Hyperion 8.8 h 
Killing Time 5.7 h 
Nova 4.1 h 
The Menace from Earth 4.1 h 
The Hitchhiker's Guide to the Galaxy 4.0 h 
The Entropy Effect 4.1 h 
Star Trek - Doctor's Orders 5.3 h Bar height shows length. Estimated at 250 words a minute.