From: Alex Gutteridge <alexg@...>
Date: 2012-11-19T23:44:07+09:00
Subject: Re: Magical 57.6 minutes in Time

On 19.11.2012 14:39, Todd Benson wrote:
> On Mon, Nov 19, 2012 at 8:37 AM, Alex Gutteridge
> <alexg@ruggedtextile.com> wrote:
>> On 19.11.2012 14:26, Todd Benson wrote:
>>>
>>> irb(main):80:0> RUBY_VERSION
>>> => "1.9.3"
>>> irb(main):81:0> system("uname -a")
>>> Linux krank 3.5.0-18-generic #29-Ubuntu SMP Fri Oct 19 10:27:31 UTC
>>> 2012 i686 i686 i686 GNU/Linux
>>> => true
>>> irb(main):82:0> require 'date'
>>> => false
>>> irb(main):083:0> Time.new(2012, 11, 3, 12, 00) - Time.new(2012, 10,
>>> 3, 12, 00)
>>> => 2678400.0
>>> irb(main):084:0> _ / 3600 / 24
>>> => 31.0
>>> irb(main):085:0> Time.new(2012, 11, 4, 12, 00) - Time.new(2012, 10,
>>> 4, 12, 00)
>>> => 2682000.0
>>> irb(main):086:0> _ / 3600 / 24
>>> => 31.041666666666668
>>> irb(main):087:0> Time.new(2013, 1, 4, 12, 00) - Time.new(2012, 12, 
>>> 4, 12,
>>> 00)
>>> => 2678400.0
>>
>>
>> If I understand your question (forgive me if not), have a think 
>> about what
>> happened on November 4th this year. As a hint, I live in the UK and 
>> the
>> answer is different on my machine...
>>
>> --
>> Alex Gutteridge
>>
>
> <facepalm>
>
> Why not exactly 60 minutes, though?

Not sure where you get your 57.6mins from to be honest (a rounding 
error?). I get 745 hours in that span of seconds (744 hours is 31 days 
exactly):

> 2682000 / 60 / 60
[1] 745
> (745-1)/24
[1] 31

-- 
Alex Gutteridge