Certain fields in Active Directory are stored in “ticks” (1 tick == 100 nanoseconds).

To make using ticks easier in an app I wanted to add an additional time method to Numeric (a lot like Active Support does… https://github.com/rails/rails/blob/master/activesupport/lib/active_support/core_ext/numeric/time.rb)

It’s probably not the best way of doing it but in the end I added it using an initialiser:

# 'config/initializers/numeric.rb'
# Be sure to restart your server when you modify this file.

class Numeric
  # Returns the number of ticks (100 nanoseconds) equivalent to the seconds provided.
  # Used with the standard time durations.
  #
  #   2.in_ticks # => 20_000_000
  #   1.hour.in_ticks # => 36_000_000_000
  def in_ticks
    self * 10_000_000
  end
end