# File lib/active_support/core_ext/time/calculations.rb, line 85 def change(options) ::Time.send( self.utc? ? :utc_time : :local_time, options[:year] || self.year, options[:month] || self.month, options[:day] || self.day, options[:hour] || self.hour, options[:min] || (options[:hour] ? 0 : self.min), options[:sec] || ((options[:hour] || options[:min]) ? 0 : self.sec), options[:usec] || ((options[:hour] || options[:min] || options[:sec]) ? 0 : self.usec) ) end