From: Xeno Campanoli <xeno.campanoli@...>
Date: 2009-06-11T10:19:15+09:00
Subject: Re: Is there a decent canonical way to get total days in a month from say Time class?

Xeno Campanoli wrote:
> I suppose I could flip through local until I generate an exception, but 
> somehow I would think there would be a set of class methods to get:

Here's a fairly simple sequence I found on the net using Date (attributions to 
kelyar, jgwong, and timmorgan, whoever they are):

#!/usr/bin/ruby
#

require 'date'

d0 = Date.new(2009,6,1)
puts "trace d0:  #{d0}"

d1 = d0 >> 1
puts "trace d1:  #{d1}"

d2 = d1 - 1
puts "trace d2:  #{d2}"

d3 = d2.day
puts "trace d3:  #{d3}"
---snip---
the above are my own illustration of what the authors show in their blog posts.

> 
>     daysofmonth = Time.daysofmonth(y,m)
>     daysofyear = Time.daysofyear(y)
>     leapday = Time.leapday?(y)
>     leapseconds = Time.leapseconds?(y)
> 
> ??
> xc
> 
>