Destructively sets the date of the mail object with the passed Time instance, returns a Time instance set to the date/time of the mail

Example:

now = Time.now
mail.date = now
mail.date #=> Sat Nov 03 18:47:50 +1100 2007
mail.date.class #=> Time

Source Code

# File action_mailer/vendor/tmail-1.2.2/tmail/interface.rb, line 132
def date=( time )
  if time
    store 'Date', time2str(time)
  else
    @header.delete 'date'
  end
  time
end