What festivities besides Christmas do you celebrate in your companies?

Christmas is probably celebrated in most companies - especially in the "western world". But what about other festivals like Hannukah, Qwanza, May 5 :-) etc. - Do you celebrate these in companies and get time off for them?

Please answer with: in which country, which days you get off, which days you celebrate, and what you do during that time to "get in the spirit".

For example: Christmas in Germany is 2-3 days off (paid), but it starts about 1 month before with Christmas markets, Christmas lights in the streets and lots of cookies and mulled wine. In companies, a Christmas tree is often decorated, cookies are provided, and a Christmas party is held one evening in December with all employees.