Guatemala does not observe daylight saving time, and uses Central Standard Time (UTC−06:00) all year-round. Daylight saving time (Central Daylight Time (CDT), UTC−05:00) has been observed in a few previous years, the last occasion being in 2006. CDT was observed for the following periods: 25 November 1973 – 24 February 1974 21 May 1983 – 22 September 1983 23 March 1991 – 7 September 1991 30 April 2006 – 1 October 2006 References See also Daylight saving time by country Time in Guatemala Guatemala