Where the term 'ish' is used it means that the closing time is somewhat variable, but it is neverbefore the time listed (even where 'ish' is not used, the team at the Bake & Alehouse have been known to be flexible - on Sunday lunchtimes, the pub has been known to be open until after 5pm on more than one occasion).
Opening details over Christmas and the New Year vary. New Year is sometimes a ticket only event (however, The Bake is a pub, not a club, so ticket-only events are very rare).