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irb> dt = Time.now.utc => 2012-04-26 10:47:01 UTC irb> dti = dt.to_i => 1335437221
现在,如何转换dti回日期/时间?
dti
使用Time.at.
Time.at
Time.at(1335437221) # => 2012-04-26 12:47:01 +0200