How to get the number of days in a given month in Ruby, accounting for year?

Question

I\'m sure there\'s a good simple elegant one-liner in Ruby to give you the number of days in a given month, accounting for year, such as \"February 1997\". What is it?

Answer 1

Time.now.end_of_month.day - for current month

Date.parse("2014-07-01").end_of_month.day - use date of first day in month.

Depends on ActiveSupport