If the vacancy occurs on a date not less than 60, nor more than 90, days before the date of the primary election in years in which a governor is regularly elected or if the vacancy occurs on a date not less than 60, nor more than 90, days before the date of the primary election or general election in election years in which a governor is not regularly elected, the acting governor shall, by proclamation, call the special election to be held on the date of the primary election or general election.