Central Daylight Time (CDT) and Central Standard Time (CST) are two time zone definitions used in the United States and Canada. CDT is one hour ahead of CST. In other words, when it is noon in CST, it is 1 p.m. in CDT.
The History of CDT and CST
CDT and CST are two of the most commonly used time zones in the United States and Canada. The first standardized time zones were created in 1883, when the U.S. and Canada agreed to use four time zones, with each zone covering 15° of longitude.
The time zone definitions have changed over the years, and in 2007 the U.S. and Canada adopted a new system of time zones, which included CDT and CST.
CDT is used in the Central Time Zone, which includes the states of Arkansas, Illinois, Iowa, Kansas, Louisiana, Minnesota, Missouri, Nebraska, North Dakota, Oklahoma, South Dakota, and Wisconsin. CST is used in the Mountain Time Zone, which includes the states of Arizona, Colorado, Montana, New Mexico, Texas, and Utah.
How to Convert Between CDT and CST
If you want to convert from CDT to CST, you need to subtract one hour from the CDT time. For example, if it is noon in CDT, it is 11 a.m. in CST.
If you want to convert from CST to CDT, you need to add one hour to the CST time. For example, if it is 11 a.m. in CST, it is noon in CDT.
Daylight Savings Time (DST)
Daylight Savings Time (DST) is a system of adjusting clocks forward one hour in the spring and back one hour in the fall. During the summer months, CDT is two hours ahead of CST. During the winter months, CDT is one hour ahead of CST.
For example, if it is 1 p.m. in CDT during the summer months, it is noon in CST. During the winter months, if it is 1 p.m. in CDT, it is 11 a.m. in CST.
Other Time Zones
In addition to CDT and CST, there are several other time zones in the United States and Canada. The Eastern Time Zone includes the states of Connecticut, Delaware, Florida, Georgia, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Virginia, and Washington, D.C. The Eastern Time Zone is one hour ahead of the Central Time Zone.
The Pacific Time Zone includes the states of California, Nevada, and Washington. The Pacific Time Zone is three hours behind the Central Time Zone. The Atlantic Time Zone includes the provinces of Newfoundland and Labrador, Nova Scotia, Prince Edward Island, and New Brunswick. The Atlantic Time Zone is one hour behind the Central Time Zone.
Frequently Asked Questions
Q1. What is the difference between CDT and CST?
A1. Central Daylight Time (CDT) is one hour ahead of Central Standard Time (CST).
Q2. How do you convert from CDT to CST?
A2. To convert from CDT to CST, subtract one hour from the CDT time.
Q3. How do you convert from CST to CDT?
A3. To convert from CST to CDT, add one hour to the CST time.
Q4. What states are in the Central Time Zone?
A4. The Central Time Zone includes the states of Arkansas, Illinois, Iowa, Kansas, Louisiana, Minnesota, Missouri, Nebraska, North Dakota, Oklahoma, South Dakota, and Wisconsin.
Q5. What states are in the Mountain Time Zone?
A5. The Mountain Time Zone includes the states of Arizona, Colorado, Montana, New Mexico, Texas, and Utah.
Q6. What time zone is used in the Eastern United States?
A6. The Eastern Time Zone is used in the Eastern United States. It includes the states of Connecticut, Delaware, Florida, Georgia, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Virginia, and Washington, D.C.
Q7. What time zone is used in the Pacific United States?
A7. The Pacific Time Zone is used in the Pacific United States. It includes the states of California, Nevada, and Washington.
Q8. What time zone is used in Atlantic Canada?
A8. The Atlantic Time Zone is used in Atlantic Canada. It includes the provinces of Newfoundland and Labrador, Nova Scotia, Prince Edward Island, and New Brunswick.
Q9. What is the effect of Daylight Savings Time?
A9. Daylight Savings Time (DST) is a system of adjusting clocks forward one hour in the spring and back one hour in the fall. During the summer months, CDT is two hours ahead of CST. During the winter months, CDT is one hour ahead of CST.
Q10. When is Central Daylight Time used?
A10. Central Daylight Time (CDT) is used in the Central Time Zone, which includes the states of Arkansas, Illinois, Iowa, Kansas, Louisiana, Minnesota, Missouri, Nebraska, North Dakota, Oklahoma, South Dakota, and Wisconsin.