Sunday 2 AM in Czech Republic: +1 hour in Daylight Savings Time switch

The Czech Republic switches from Central European Time (CET) to Central European Summer Time (CEST) at 2 AM on Sunday, along with the rest of Europe. CEST lasts until October. In the Czech Republic, CEST was first introduced during WWI and then again during WWII. It was abolished in 1949 but brought back by the communist authorities in 1979.