2016 is the year of the leap-second. One will be added on Dec 31 at 23:59:60, so if you go to bed as normal on NYE you will get more sleep.
Then again you might not if the neighbours are having a hooley, playing Auld Lang Syne, 1999 and Let's Get The Party Started on a loop and letting off fireworks.
I saw that on the news a couple of weeks ago WM but it won't cross my mind at the time as I'll be doing the grape, cava and gulp challenge on the stroke of midnight!
And I will be down the pub listening to a soul band and drinking cheap gin doubles till they come out of my ears, or out of any other orifice that they reach sooner.