From: Michael Guterl <mguterl@...>
Date: 2006-10-09T22:45:57+09:00
Subject: Beginning of day given a Time value

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Anyone have a nice idiomatic way given an instance of Time, to return the
beginning of that day?  Below is my approach but it just feels very wrong...

require "test/unit"
require "time"

class Time
  def begin_of_day
    Time.parse "#{self.month}/#{self.day}/#{self.year}"
  end
end

class TestBeginOfDay < Test::Unit::TestCase
  def test_begin_of_day
    start_of_day = Time.parse "10/1/2006 00:00"
    time = Time.parse "10/1/2006 9:45"
    assert_equal(start_of_day, time.begin_of_day)
  end
end

Thanks,
Michael Guterl

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