end_of_week()
public
Returns a new Time representing the end of this
week (Sunday, 23:59:59)
# File activesupport/lib/active_support/core_ext/time/calculations.rb, line 163
def end_of_week
days_to_sunday = self.wday!=0 ? 7-self.wday : 0
(self + days_to_sunday.days).end_of_day
end