Books like The Importance of Being Earnest
Oscar Wilde
The Importance of Being Earnest is 102 pages, about 1 hour 52 minutes at 250 words a minute.
12 books to read next
How long each takes
An Inspector Calls 1.5 h 
Harry Potter and the Cursed Child 6.3 h 
Can I Play, Too? 1.1 h 
Look Back in Anger 1.8 h 
Henry IV, Part 1 3.0 h 
Coriolanus 3.6 h 
The Selection 6.0 h 
Catch the Ball 13 min 
Romeo & Juliet (adaptation) 2.8 h 
The Elite 6.2 h 
The One 5.9 h 
Romeo and Juliet, 1750 1.3 h Bar height shows length. Estimated at 250 words a minute.