2.1.0 :002 > Time.at(1432927800000/1000).to_s(:db)
=> "2015-05-29 22:30:00"
# Instead of strftime will be better to use predefined :db pattern from ActiveSupport:
>> Date.new(2009,11,26).to_time
=> Thu Nov 26 00:00:00 -0800 2009
>> Date.new(2009,11,26).to_time.to_i
=> 1259222400
>> Time.at(1259222400)
=> Thu Nov 26 00:00:00 -0800 2009