In North America, during Daylight Saving Time (DST) from second Sunday in March to the first Sunday in November Central Daylight Time (CDT) timezone is observed. The rest of the year is Central Standard Time (CST) is being used.

Other states that are observing CDT in the summer and CST in the winter

• Alabama
• Arkansas
• Florida NW parts
• Illinois
• Indiana (parts)
• Iowa
• Kansas - except for Western countries
• Kentucky -Western part
• Louisiana
• Michigan (few counties in the west)
• Minnesota
• Mississippi
• Missouri
• Nebraska (parts in the east)
• North Dakota (North and Eastern parts)
• Oklahoma
• South Dakota (Eastern parts)
• Tennessee (Western parts)
• Texas
• Wisconsin

• America/Chicago
• America/Indiana/Tell_City
• America/Menominee
• America/Winnipeg
• America/Indiana/Knox
• America/Matamoros
• America/North_Dakota/Beulah
• America/North_Dakota/New_Salem
• America/Ojinaga
• America/Rainy_River
• America/Resolute
• America/Winnipeg

Related timezones:

• Central Time:
  • CST - Central Standard Time (UTC-6)
  • CDT - Central Daylight Time (UTC-5)