Tuesday 01 Jan New Year's Day
Friday 29 Mar Good Friday
Monday 01 Apr Easter Monday
Wednesday 01 May Labour Day
Tuesday 24 Dec Christmas Eve
Wednesday 25 Dec Christmas Day
Thursday 26 Dec Christmas Holiday
Tuesday 31 Dec New Year's Eve
Source: http://xetra.com/xetra/dispatch/en/kir/navigation/xetra/300_trading_clearing/200_trading_information/100_trading_calender