Doing DateTime Arithmetic : Date Calculation « Date « Ruby

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Ruby » Date » Date Calculation   Doing DateTime Arithmetic require 'date' puts y2k_dt = DateTime.new(2000, 1, 1) puts (y2k_dt + 1).to_s                  # => "2000-01-02T00:00:00Z" puts (y2k_dt - 1).to_s                  # => "1999-12-31T00:00:00Z" puts (y2k_dt + 0.5).to_s                # => "2000-01-01T12:00:00Z" puts (y2k_dt + 365).to_s                # => "2000-12-31T00:00:00Z"   Related examples in the same category 1.  Subtract 61 days from a date: 2.  Add and subtract six months using the >> and << methods. 3.  Doing Date Arithmetic 4.  Minus one DateTime from another 5.  Move DateTime 6.  leap year day 7.  Counting the Days Since an Arbitrary Date 8.  advent calendar 9.  Minus DateTime by day 10.  Remaining days

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