Current Time in CDT (Central Daylight Time)
About CDT
The daylight saving time for the Central Time Zone in North America. Used in parts of Canada, the United States, and Mexico. It is one hour ahead of Central Standard Time (CST, UTC-06:00). Active from March to November.
UTC Offset: -05:00
Current time shown is based on the representative IANA zone: America/Chicago
Central Daylight Time (CDT): A Complete Guide
Central Daylight Time (CDT) is the daylight saving time (DST) zone observed across large parts of North America. It is 5 hours behind Coordinated Universal Time (UTC-5) and is used during the warmer months, typically from the second Sunday in March to the first Sunday in November. CDT is the DST counterpart of Central Standard Time (CST, UTC-6).
What is Central Daylight Time?
CDT stands for Central Daylight Time, the daylight saving variant of Central Standard Time. When DST is not in effect, the region uses CST (UTC-6). The shift to CDT (UTC-5) occurs each spring, moving clocks forward one hour, and reverts in autumn. The abbreviation CDT is widely recognized in business, travel, and broadcasting across the central United States, Canada, and Mexico.
Regions and Major Cities
CDT is observed in three countries: the United States, Canada, and Mexico. In the United States, it covers the entire Central Time Zone, including major cities such as Chicago (Illinois), Dallas (Texas), Houston (Texas), Minneapolis (Minnesota), and St. Louis (Missouri). In Canada, CDT is used in the province of Manitoba (e.g., Winnipeg) and parts of Ontario (e.g., Rainy River) and Nunavut (e.g., Resolute). In Mexico, CDT is observed in the state of Chihuahua (e.g., Ojinaga) and parts of Tamaulipas (e.g., Matamoros). The IANA time zone database lists multiple zones under CDT, including America/Chicago, America/Winnipeg, and America/Matamoros, among others.
Comparison with Neighboring Time Zones
CDT shares its UTC offset (UTC-5) with Eastern Standard Time (EST) during the winter months, but they are not the same: EST is used in the Eastern Time Zone during standard time, while CDT is a daylight saving time zone. During summer, CDT aligns with Eastern Daylight Time (EDT, also UTC-5), but the two zones have different standard offsets (CST vs. EST). To the west, Mountain Daylight Time (MDT, UTC-6) is one hour behind CDT. To the east, Eastern Daylight Time (EDT, UTC-4) is one hour ahead of CDT. In Mexico, some border cities like Matamoros observe CDT, while others in the same state may use different rules.
Practical Business Hours Guidance
When scheduling across time zones, note that CDT is in effect from March to November. For example, 10:00 AM CDT is 11:00 AM EDT (New York) and 8:00 AM MDT (Denver). For international coordination, 12:00 PM CDT equals 5:00 PM UTC. Common business hours in CDT (9:00 AM to 5:00 PM) correspond to 10:00 AM to 6:00 PM EDT and 7:00 AM to 3:00 PM PDT. Always confirm DST status, as some regions (e.g., Saskatchewan) do not observe DST and remain on CST year-round.
Frequently Asked Questions
What is the difference between CDT and CST?
CDT (Central Daylight Time) is UTC-5 and used during daylight saving time (spring to autumn). CST (Central Standard Time) is UTC-6 and used during standard time (autumn to spring). CDT is one hour ahead of CST.
When does CDT start and end?
In the United States and Canada, CDT begins on the second Sunday in March (clocks spring forward at 2:00 AM local time) and ends on the first Sunday in November (clocks fall back at 2:00 AM local time). Mexico follows similar dates but may have local variations.
Which US states observe CDT?
CDT is observed in the entire Central Time Zone, which includes all or parts of 20 states: Alabama, Arkansas, Illinois, Iowa, Kansas, Kentucky (western), Louisiana, Minnesota, Mississippi, Missouri, Nebraska, North Dakota, Oklahoma, South Dakota, Tennessee (central and western), Texas, and Wisconsin. Some states like Florida and Michigan are entirely in Eastern Time.
Is Chicago on CDT right now?
Chicago, Illinois, observes CDT from March to November. During the rest of the year, it uses CST. To check current time, refer to a reliable time source or the America/Chicago IANA zone.
Does Mexico observe CDT?
Yes, parts of Mexico observe CDT, including the state of Chihuahua (e.g., Ojinaga) and some border cities in Tamaulipas (e.g., Matamoros). Most of Mexico uses Central Standard Time (CST) year-round, but these areas follow US DST schedules.
What is the UTC offset of CDT?
Central Daylight Time is UTC-5, meaning it is 5 hours behind Coordinated Universal Time. For example, when it is 12:00 UTC, it is 7:00 AM CDT.