The Protestant church festival of Buß- und Bettag (German link), more or less Day of Revival and Prayer, is celebrated on the third Wednesday in November. Up until 1994 it was a general holiday, in 1995 is was cancelled in order to finance the compulsory nursing care insurance (the plan seriously back-fired).
Saxony alone, a state which remained faithful to Protestantism even after August the Strong (Elector of Saxony) converted to Catholicism in order to become King of Poland, retains the day as a public holiday. However, any Protestant who feels the urge to observe this day is entitled to - unpaid - vacation.
Warning: It's a school holiday in Bavaria!
