Resigned  April    It is not disputed that Butes successor Grenville took office as PM on  April   But the  Encyclopedia Brittanica gives Butes date of resignation as  April    And a calculation from the dates and figures provided by  Downing Street Total time as PM  days also indicates he resigned office  April  And Marjie Bloy agrees on  April   Im about to edit the dates in office  If anyone reverts please provide credible references