What months have 31 days?By admin / Home › Forums › Announcements & Information › Chandigarh Community › What months have 31 days? This topic has 1 reply, 2 voices, and was last updated 10 years, 1 month ago by purnima. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts October 1, 2015 at 5:52 pm #13668 adminKeymaster 11 – November – 30 days. 12 – December – 31 days. The Gregorian calendar has four months with a length of 30 days and seven months that are 31 days long. February is the only month that is 28 days long in common years and 29 days long in leap years. October 12, 2015 at 6:16 am #13772 purnimaParticipant January – 31 days March – 31 days May – 31 days July – 31 days August – 31 days October – 31 days December – 31 days Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In