module ActiveRecord

def self.default_timezone=(default_timezone)

dates and times from the database. This is set to :utc by default.
Determines whether to use Time.utc (using :utc) or Time.local (using :local) when pulling 
def self.default_timezone=(default_timezone)
  unless %i(local utc).include?(default_timezone)
    raise ArgumentError, "default_timezone must be either :utc (default) or :local."
  end
  @default_timezone = default_timezone
end