holidays

Polish Underground State's Day (Poland)

Public holidays in Poland

Holidays in Poland are regulated by the Non-working Days Act of 18 January 1951. The Act, as amended in 2010, currently defines thirteen public holidays.
Source: Wikipedia (CC BY-SA)

September 27

Day of the year

September 27 is the 270th day of the year in the Gregorian calendar; 95 days remain until the end of the year.
Source: Wikipedia (CC BY-SA)