Ruby: clean way to piece together date and time

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What's the ea开发者_JAVA技巧siest way to piece together the two parts into a single date object in Ruby? (I wrote some crappy way to do this, and is curious if there is a cleaner method)

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require 'date'
date, time = %w(2011-02-26 17:00)
dt = DateTime.parse("#{date} #{time}:00")
dt.to_s # => 2011-02-26T17:00:00+00:00

Note the assumption of UTC; you'll have to append your own time zone if needed.

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>> Time.local(*("2011-02-26".split("-") + "17:00".split(":")))
=> Sat Feb 26 17:00:00 0100 2011
>> Time.parse(["2011-02-26", "17:00"].join(" "))
=> Sat Feb 26 17:00:00 0100 2011

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If you have 2010-02-26 as params[:date] and 17:00 as params[:time], then you can do

Time.parse("#{params[:date] #{params[:time]}}")