Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
Guatemala currently 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.