Thursday 15 Mar Public Holiday Friday 16 Mar Public Holiday Friday 06 Apr Good Friday Monday 09 Apr Easter Monday Monday 30 Apr Public Holiday Tuesday 01 May Labor Day Monday 28 May Whit Monday Monday 20 Aug National Day Monday 22 Oct Public Holiday Tuesday 23 Oct Public Holiday Thursday 01 Nov All Saints' Day Friday 02 Nov Public Holiday Monday 24 Dec Christmas Eve Tuesday 25 Dec Christmas Day Wednesday 26 Dec Boxing Day Monday 31 Dec New Year's Day Note: The following Saturdays which are declared business day in Hungary shall also be non-trading days in 2012: March 24, April 21, October 27, November 10, December 15.
Source: http://www.bse.hu/topmenu/marketsandproducts/tradinginfo/trading_calendar/trading_holidays_2012.html