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Printing a Date
CodeExpectedActual
require 'date'
Time.now.to_s
 "Sat Mar 18 19:05:50 EST 2006" "Mon Mar 27 16:43:20 EST 2006" 
DateTime.now.to_s
 "2006-03-18T19:05:50-0500" "2006-03-27T16:43:20-0500" 
Time.gm(2006).strftime('The year is %Y!')
 "The year is 2006!" "The year is 2006!" 
time = Time.gm(2005, 12, 31, 13, 22, 33)
american_date = '%D'
time.strftime(american_date)
 "12/31/05" "12/31/05" 
european_date = '%d/%m/%y'
time.strftime(european_date)
 "31/12/05" "31/12/05" 
four_digit_year_date = '%m/%d/%Y'
time.strftime(four_digit_year_date)
 "12/31/2005" "12/31/2005" 
date_and_time = '%m-%d-%Y %H:%M:%S %Z'
time.strftime(date_and_time)
 "12-31-2005 13:22:33 GMT" "12-31-2005 13:22:33 GMT" 
twelve_hour_clock_time = '%m-%d-%Y %I:%M:%S %p'
time.strftime(twelve_hour_clock_time)
 "12-31-2005 01:22:33 PM" "12-31-2005 01:22:33 PM" 
word_date = '%A, %B %d, %Y'
time.strftime(word_date)
 "Saturday, December 31, 2005" "Saturday, December 31, 2005" 
require 'time'
time.rfc822
 "Sat, 31 Dec 2005 13:22:33 -0000" "Sat, 31 Dec 2005 13:22:33 -0000" 
time.httpdate
 "Sat, 31 Dec 2005 13:22:33 GMT" "Sat, 31 Dec 2005 13:22:33 GMT" 
time.iso8601
 "2005-12-31T13:22:33Z" "2005-12-31T13:22:33Z" 
class Time
  def day_ordinal_suffix
    if day == 11 or day == 12
      return "th"
    else
      case day % 10
      when 1 then return "st"
      when 2 then return "nd"
      when 3 then return "rd"
      else return "th"
      end
    end
  end
end
time.strftime("The %e#{time.day_ordinal_suffix} of %B")
 "The 31st of December" "The 31st of December"