Issue #4068 has been updated by tadayoshi funaba. > t = Time.new(2001) #=> 2001-01-01 00:00:00 +0900 > t += 0.5 #=> 2001-01-01 00:00:00 +0900 > t + 0.5 #=> 2001-01-01 00:00:01 +0900 same. not problem. and date objest shows the difference in inspect. ---------------------------------------- http://redmine.ruby-lang.org/issues/show/4068 ---------------------------------------- http://redmine.ruby-lang.org