Time-zone abbreviation
CDT time now
CDT has several regional meanings. Compare the current time, UTC offset and IANA rule set before scheduling.
Central Daylight Time
Wednesday, September 16, 2026
CDT is ambiguous. It has 2 represented meanings on this page. Use a city or IANA identifier for conversion.
Regional definitions
What CDT can mean
Current abbreviations and offsets are calculated for this instant. A regional zone may be in a different seasonal phase today.
Central Daylight Time
North America6:33 AM
Wednesday, September 16, 2026
Central Time
North America6:33 AM
Wednesday, September 16, 2026
| Meaning | Current abbreviation | UTC offset | Rule set | Notes |
|---|---|---|---|---|
| Central Daylight Time North America | Central Daylight Time | UTC-05:00 | Fixed offset | The UTC-05:00 daylight-time phase of Central Time. |
| Central Time North America | CDT | UTC-05:00 | America/Chicago | A regional zone that uses CDT during its daylight-saving period. |
DST-aware conversion
Time zone converter
Convert historical, current or future wall times between cities, IANA zones and UTC offsets.
Clear answers
CDT time-zone questions
What does CDT mean?
On this page CDT can refer to Central Daylight Time, Central Time. The intended meaning depends on the region and date.
Is CDT a unique time zone?
No.
Can the UTC offset for CDT change?
A fixed abbreviation entry has a fixed offset, but a geographic regional time zone can switch abbreviations or offsets under daylight-saving rules.
What should I enter in the time converter?
Use a city or an IANA time-zone identifier when an abbreviation is ambiguous. This avoids silently choosing the wrong region.
