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About CDT
CDT (Central Daylight Time) is the daylight saving time observed in parts of North America during the warmer months of the year. The time zone offset of CDT is UTC−05:00, which means it is 5 hours behind Coordinated Universal Time (UTC).
Central Daylight Time is used as the summer-time version of Central Standard Time (CST). When daylight saving time ends, regions observing CDT switch back to CST, which has a UTC offset of UTC−06:00.
CDT is observed in many areas of the United States and Canada, including major cities such as Chicago, Houston, Dallas, Winnipeg, and Oklahoma City. It helps extend evening daylight during the spring and summer months.