From: Lloyd Zusman <ljz@...>
Date: 2005-11-13T02:54:58+09:00
Subject: Converting between Time and DateTime

What is the recommended method for converting between Time objects and
those of type DateTime?

I know that I can do this:

  dt = DateTime.new
  t = Time.mktime(dt.year, dt.mon, dt.day,
                  dt.hour, dt.min, dt.sec)

... and this:

  t = Time.now
  dt = DateTime.civil(t.year, t.mon, t.day,
                      t.hour, t.min, t.sec)

However, this seems overly verbose to me, and I end up putting one or
both of the following into my ruby programs:

  class DateTime
    def self.fromTime(t)
      return DateTime.civil(t.year, t.mon, t.day,
                            t.hour, t.min, t.sec)
    end
  end

  class Time
    def self.fromDateTime(dt)
      return Time.mktime(dt.year, dt.mon, dt.day,
                         dt.hour, dt.min, dt.sec)
    end
  end

Is there any reason for why we can't have similar methods as part of the
official DateTime and Time classes?

Or is there already some sort of mechanism for this that I have
overlooked?

Thanks in advance.


-- 
 Lloyd Zusman
 ljz@asfast.com
 God bless you.