Convert Chicago to CDT
Convert a time in Chicago to CDT, with daylight-saving changes applied for the date you choose.
Chicago to CDT
Time in Chicago, United States
Time in CDT, North America
- Chicago now
- —
- CDT now
- —
Time zone details
Chicago, United States
- IANA zone
- America/Chicago
- Standard offset
- UTC-06:00
- Daylight offset
- UTC-05:00
- Daylight saving
- Observed
Clocks change in 2026 on 8 March 2026 and 1 November 2026.
Daylight at the solstices
- 21 June
- 05:16 – 20:30 (15h 14m)
- 21 December
- 07:16 – 16:23 (9h 08m)
CDT, North America
- IANA zone
- Etc/GMT+5
- Standard offset
- UTC-05:00
- Daylight saving
- Not observed
Sunrise and sunset are calculated for the city centre and are accurate to about a minute. Local elevation and atmospheric conditions shift the observed horizon.
Need the reverse direction? Convert CDT to Chicago.
Related time zones conversions
Frequently asked questions
What is the time difference between Chicago and CDT?+
Chicago is UTC-06:00 and CDT is UTC-05:00 in standard time. The gap between them changes during the year if either place observes daylight saving, so enter a date to see the difference on that day.
Does Chicago observe daylight saving time?+
Yes. In 2026 the clocks change on 8 March 2026 and 1 November 2026.
Does CDT observe daylight saving time?+
No. CDT stays on UTC-05:00 all year.
Why does one local time sometimes have two answers?+
When clocks go back, the hour before the change repeats, so that local reading happens twice and both instants are valid. When clocks go forward, the skipped hour never occurs, so that reading has no matching instant at all. The converter reports both cases rather than guessing.