OMX Nordic Exchange Iceland would like to remind market participants that summer trading hours take effect as of March 31, 2008 when Europe changes to summer time. During the period March 31 to October 24, 2008 the trading hours will be as follows: GMT CET Pre-trading 08:00 10:00 Opening call auction 09:45 11:45 Continuous trading 10:00 12:00 Closing call auction* 15:20 17:20 Terminating 15:23 17:23 *There is a closing call auction on the equity market but not on the fixed-income market. Continuous trading in the fixed-income market ends at 15:23 GMT (17:23 CET).