Hi,

I want to know how many days a month has. So I lookup here:
http://www.ruby-doc.org/core/classes/Time.html

CommonYearMonthDays and LeapYearMonthDays constants do what I need. But
I cannot access them.

$ irb
irb(main):001:0> require "time"
=> true
irb(main):002:0> print Time::CommonYearMonthDays
NameError: uninitialized constant Time::CommonYearMonthDays
        from (irb):2

But I can access constants from another module, such as BLOCK_SIZE from
openssl/buffering module.

Any idea? Ruby 1.8.4 ( build from source ).

Thank you.