Sept 20th (Day 263) Antarctic Sea Ice Extent set its 52nd daily record for the year. (12th in a row) Of course Antarctic Sea Ice hit an all-time record on the 14th.
Antarctic Sea Ice gained 31,000 sq km on day 263. It also looks like there is a decent chance of a new all-time record on day 264 or day 265. 2012 had a double peak.
Click graph for bigger. Data is here.