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RailsのTimezone設定をUTCからJSTに変えたい時

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RailsのDefault設定で時間を画面出力するとこうなる。

DefaultTimeZone
2ヶ月前 (2015-01-03 01:48:24 UTC)

時間を変更する方法には2種類存在する。
1. DBの保存時間を変更する
2. 表示のみをUST→JSTにする

DB保管は変えずに表示のみを変えた方が良さげに感じるので、僕は2.を利用しました。

1. DBの保存時間を変更する

config/application.rb
config.active_record.default_timezone = :local

2. 表示のみをUST→JSTにする

config/application.rb
config.time_zone = 'Tokyo'

JSTTimeZone
2ヶ月前 (2015-01-03 10:48:24 +0900)

参考

http://d.hatena.ne.jp/iriya_0624/20130429/1367244830

おまけ

2ヶ月前と記載があるけど、これもrailsの機能で自動的に現在時間から変換をかけてくれる。

distance_of_time_in_words
<%= distance_of_time_in_words_to_now(tweet.tweeted_at) %>

こんな感じで使いましょう。

http://api.rubyonrails.org/classes/ActionView/Helpers/DateHelper.html#method-i-distance_of_time_in_words

♡Rails

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