Central Daylight Time (CDT)
Central Daylight Time (CDT) is UTC−5. It is the daylight saving (summer) time of US and Canadian Central zone during daylight saving time; in winter the area returns to CST (UTC−6).
CDT is not in force right now – the zone is currently on CST (UTC−6).
Convert CDT
Where CDT is used
US and Canadian Central zone during daylight saving time.
Major cities on America/Chicago
CDT and daylight saving time
The next change is on 14 March 2027 at 01:59 local time: clocks go forward one hour, from CST (UTC−6) to CDT (UTC−5).
Convert CDT to other time zones
CDT FAQ
What is CDT?
Central Daylight Time (CDT) is UTC−5. It is the daylight saving (summer) time of US and Canadian Central zone during daylight saving time; in winter the area returns to CST (UTC−6).
What is the current CDT time?
CDT is UTC−5. The live clock on this page shows the current Central Daylight Time time, updated every second.
What is the difference between CDT and CST?
CST is one hour behind CDT. CDT is used during daylight saving time; CST is the standard time.
Is CDT the same as CT?
CT (Central Time) is the year-round name. CDT is the exact name used in summer. People often write CT when they mean whichever one is in force today.
Which countries use CDT?
CDT is used in US and Canadian Central zone during daylight saving time.
Updated 6 November 2026. Time zone data: IANA tz database.