In Slovenia, the standard time is Central European Time (; CET; ). Daylight saving time is observed from the last Sunday in March (02:00 CET) to the last Sunday in October (03:00 CEST). This is shared with several other EU member states.
The Austro-Hungarian Empire adopted CET on 1 October 1891. Slovenia would continue to observe CET after independence, and observed daylight saving time between 1941 and 1946, and again since 1983.
Slovenia uses both the 12-hour and 24-hour clock.
In the IANA time zone database, Slovenia is given one zone in the file zone.tab â Europe/Ljubljana. Data for Slovenia directly from zone.tab of the IANA time zone database; columns marked with * are the columns from zone.tab itself: