CST to UTC Time Converter
Compare CST and UTC instantly. The clocks below stay in sync with the IANA time-zone database, so daylight-saving transitions are handled automatically for both Chicago and UTC.
24-Hour Comparison Timeline
Green = working hours · Yellow = early/late · Red = night
24-hour reference table
| CST (Chicago) | UTC (UTC) |
|---|---|
| 12:00 AM | 05:00 AM |
| 01:00 AM | 06:00 AM |
| 02:00 AM | 07:00 AM |
| 03:00 AM | 08:00 AM |
| 04:00 AM | 09:00 AM |
| 05:00 AM | 10:00 AM |
| 06:00 AM | 11:00 AM |
| 07:00 AM | 12:00 PM |
| 08:00 AM | 01:00 PM |
| 09:00 AM | 02:00 PM |
| 10:00 AM | 03:00 PM |
| 11:00 AM | 04:00 PM |
| 12:00 PM | 05:00 PM |
| 01:00 PM | 06:00 PM |
| 02:00 PM | 07:00 PM |
| 03:00 PM | 08:00 PM |
| 04:00 PM | 09:00 PM |
| 05:00 PM | 10:00 PM |
| 06:00 PM | 11:00 PM |
| 07:00 PM | 12:00 AM(Sat, Oct 3) |
| 08:00 PM | 01:00 AM(Sat, Oct 3) |
| 09:00 PM | 02:00 AM(Sat, Oct 3) |
| 10:00 PM | 03:00 AM(Sat, Oct 3) |
| 11:00 PM | 04:00 AM(Sat, Oct 3) |
Daylight saving time
Chicago observes daylight saving time; UTC does not. Expect a one-hour swing when Chicago starts or ends DST.
Working-hours overlap
9 AM–12 PM CST (2 PM–5 PM UTC) — the shared 9-to-5 window for meetings.
Frequently asked questions
What is the time difference between CST and UTC?+
UTC (UTC+00:00) is currently 5 hours ahead of CST (UTC-05:00). This page recalculates the offset live from the IANA time-zone database, including any daylight-saving transitions.
Does CST or UTC observe daylight saving time?+
Chicago observes daylight saving time; UTC does not, so the gap changes when Chicago springs forward or falls back. Times on this page always reflect the current local rules.
What are the best meeting hours between Chicago and UTC?+
Standard 9–5 working hours in Chicago and UTC overlap from 9 AM to 12 PM CST (2 PM–5 PM UTC). Schedule calls inside this window to keep both sides in normal business hours.
How do I quickly convert CST to UTC?+
Use the live clocks and 24-hour reference table above. Pick any hour on the CST row to see the matching UTC time. The Event Planner also lets you pick a specific date and share it with attendees.