Modify the Time class to provide methods for converting a given number of date units (like years, weeks, and days) to seconds.

Methods
Public Class methods
days( num )
    # File lib/datename.rb, line 31
31:   def Time.days( num )
32:     num * Time.hours( 24 )
33:   end
hours( num )
    # File lib/datename.rb, line 35
35:   def Time.hours( num )
36:     num * Time.minutes( 60 )
37:   end
minutes( num )
    # File lib/datename.rb, line 39
39:   def Time.minutes( num )
40:     num * Time.seconds( 60 )
41:   end
seconds( num )
    # File lib/datename.rb, line 43
43:   def Time.seconds( num )
44:     num
45:   end
weeks( num )
    # File lib/datename.rb, line 27
27:   def Time.weeks( num )
28:     num * Time.days( 7 )
29:   end
years( num )
    # File lib/datename.rb, line 23
23:   def Time.years( num )
24:     num * Time.days( 365 )
25:   end