gistfile1.txt

require 'benchmark'
require 'time'

string = "2010-11-10 23:00:00 UTC"
n = 1_000_000

Benchmark.bmbm do |b|
#  b.report 'Time.parse' do
#    n.times do
#      Time.parse(string)
#    end
#  end

  b.report 'Time.strptime' do
    format = '%Y-%m-%d %H:%M:%S %z'
    n.times do
      Time.strptime(string, format)
    end
  end
end