16In that year the annual meeting of the council of a parish or a borough included in a rural district which (apart from this Act) is due to be held on or within fourteen days after 20th May and, in the case of a rural district which is co-extensive with a parish, the annual meeting of the rural district council which (apart from this Act) is due to be held on or as soon as conveniently may be after that date shall instead be held on, or within 14 days after, the day on which the councillors elected at the ordinary elections of parish councillors or councillors of boroughs included in rural districts or rural district councillors in that year come into office.