# File lib/rufus/scheduler/jobs.rb, line 459
      def last_at=(last)

        #@last_at = last ? Rufus::Scheduler.parse_to_time(last) : nil
        @last_at = last ? ZoTime.make(last) : nil

        fail ArgumentError.new(
          "cannot set last[_at|_in] in the past: " +
          "#{last.inspect} -> #{@last_at.inspect}"
        ) if last && @last_at < Rufus::Scheduler::ZoTime.now

        @last_at
      end