# File lib/glue/time.rb, line 46
        def self.days_extrema(time1, time2=nil)
                time2 = time1 if (not time2.valid? Time)
                time2 = NEVER if (time2 <= time1)
                start_time = Time.self.start_of_day(time1)
                end_time = self.end_of_day(time2)
                return (start_time..end_time)
        end