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  1. time = "2018-11-24 13:30:00"
  2. p (time+" UTC").in_time_zone("Tokyo")
Runtime error #stdin #stdout #stderr 0s 28216KB
stdin
Standard input is empty
stdout
Standard output is empty
stderr
prog.rb:2:in `<main>': undefined method `in_time_zone' for "2018-11-24 13:30:00 UTC":String (NoMethodError)