365 days
         n 1: a year that is not a leap year [syn: {common year}, {365
               days}]

English Dictionary: 366 days	by the DICT Development Group
From WordNet (r) 3.0 (2006) [wn]:
366 days n in the Gregorian calendar: any year divisible by 4 except centenary years divisible by 400 Synonym(s): leap year, intercalary year, 366 days, bissextile year