We understand it's Labor Day in America! Now without recourse to google, we can't be sure what that actually is? But we can speculate. Is it a day when everyone has to go to work? In the UK we call it Labour anyway which is a political party that used to run the country, but doesn't anymore (allegedly). So perhaps it is something political? But then why would anyone want to celebrate politics?
OK, I've just consulted Wiki. It appears to be the day when everyone remembers the economic and social contributions of workers. It figures that we do not have such a day in Britain!! What we do have here is a day to celebrate the economic and social detriment of out-of-workers when they go and sign on at JobCentrePlus every second Thursday! It's a blast (errr so I'm told!).
Incidentally, it also appears to be the last day in the year when it is fashionable for women to wear white.
So Happy (non) Labo(u)r Day everyone! NB please redistribute parentheses as you will :)