From: Magnus Bodin <magnus@...>
Date: 2005-04-13T04:50:45+09:00
Subject: DateTime#+ mystifications


DateTime objects supports adding, right?

I thought so and tested this: 

#######

require 'parsedate'
require 'date'

dates = [
 '2005-04-08 10:48:53.577',
 '2005-04-08 11:18:53.577',
 '2005-04-08 11:48:53.577',
 '2005-04-08 12:18:53.577',
 '2005-04-08 12:48:53.577',
 '2005-04-08 13:18:53.577',
 '2005-04-08 13:48:53.577',
 '2005-04-08 14:18:53.577',
]
										
dates.each{ |d|
	dp = ParseDate::parsedate(d)
	tn = DateTime.new(dp[0],dp[1],dp[2],dp[3],dp[4])
 	tn = tn + 3600.0/86400.0
	print d,"; ",tn.ctime,"\n"
}

############


gives this output

2005-04-08 10:48:53.577; Fri Apr  8 11:48:00 2005
2005-04-08 11:18:53.577; Fri Apr  8 12:17:59 2005
2005-04-08 11:48:53.577; Fri Apr  8 12:47:59 2005
2005-04-08 12:18:53.577; Fri Apr  8 13:18:00 2005
2005-04-08 12:48:53.577; Fri Apr  8 13:47:59 2005
2005-04-08 13:18:53.577; Fri Apr  8 13:17:59 2005
2005-04-08 13:48:53.577; Fri Apr  8 13:48:00 2005
2005-04-08 14:18:53.577; Fri Apr  8 15:17:59 2005

And this does look pretty strange when no time in the
right column seem to start with 14.

-- magnus