From: Jonathan Nielsen <jonathan@...>
Date: 2011-01-20T17:03:27+09:00
Subject: Re: How to reference a different epoch.

On Wed, Jan 19, 2011 at 10:51 PM, Phil Henley <dantes990@yahoo.com> wrote:
> I'm trying to use the 'at' method in Time on some data pulled from an
> OSX file:
>
> Time.at(317192535.56501901)
>
> And my result is off by 30 years.  I assume this is because Ruby is
> referencing the Unix epoch of 1/1/1970 and I need to reference the OSX
> epoch of 1/1/2000.  Is there aSn easy way to change this so I'm
> referencing the OSX epoch?
>
Sure, you should be able to add 978307200 to the result of your
Time.at call.  I believe that's the right number anyway, it's the
result of Time.mktime("2001 Jan 01") - Time.mktime("1970 Jan 01").

-Jonathan Nielsen