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[ruby-list:44398] 㧠DateTime ã«å¯¾ã™ã‚‹åŠ ç®—ãŒè©±é¡Œã«ãªã£ã¦ã„ã¾ã™ãŒã€ç¾åœ¨ã®
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- Rational を使ã†æ–¹æ³•ã¯ç›´è¦³çš„ã§ãªã„
- 24*60 ç‰ãƒžã‚¸ãƒƒã‚¯ãƒŠãƒ³ãƒãƒ¼ã‚’é »ç¹ã«ç”¨ã„ã‚‹å¿…è¦ãŒã‚ã‚‹
- Time ã¯ç§’ã€Date/DateTimeã¯æ—¥ã‚’基本å˜ä½ã¨ã—ã¦ã„ã‚‹ãŸã‚ã€
 値をæµç”¨ã™ã‚‹ã¨ã¯ã¾ã‚‹
puts Time.now + 3600
2007-12-27 19:19:44 +0900 #1時間後
puts DateTime.now + 3600
2017-11-04T18:11:58+09:00 #10年後ï¼
TimeSpan ã®ã‚ˆã†ãªã‚¯ãƒ©ã‚¹ã‚’è¿½åŠ ã™ã‚‹ã¨ä»¥ä¸‹ã®ã‚ˆã†ã«ãªã£ã¦èª¤è§£ãŒå°‘ãªããªã‚‹ã®
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puts Time.now + TimeSpan(:days => 1)
2007-12-28 17:57:40 +0900
puts Time.now + TimeSpan(:hours => 1)
2007-12-27 18:57:40 +0900
puts DateTime.now + TimeSpan(:days => 1)
2007-12-28T17:57:40+09:00
puts DateTime.now + TimeSpan(:hours => 1)
2007-12-27T18:57:40+09:00