DateTime.now + 1.hour 㨠DateTime.now +1.hour ã¯ç°ãªãå¤ãè¿ãã¾ãã ä½ãè¨ã£ã¦ãã®ãããããã¼ã¨æãããã®å®è¡çµæãè¦ã¦ãããããã¤ãã©ãæãï¼ [10] pry(main)> DateTime.now + 1.hour Fri, 29 Jan 2016 11:38:52 +0900 # ãã£ã¡ã 㨠11:38 [11] pry(main)> DateTime.now +1.hour Fri, 29 Jan 2016 10:38:52 +0900 # ãããã㨠10:38ããããï¼ ãããã»ã»ã»ãã°ãããã§ãã»ã»ã»/// ãªãã§ã DateTime.now + 1.hour ã DateTime.now() + 1.hour ã¨è§£éãããã®ã«å¯¾ãã DateTime.now +1.hour 㯠DateTime.now(+1.hour) ã¨è§£
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