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CST to UTC Converter – Convert Central Time to UTC

Select your time and date, then see the conversion instantly
Example: When it's 9:00 AM in CST, it's:
3:00 PMUTC (UTC+0)
UTC is 6 hours ahead of CST during standard time.
Same-day example conversion

Quick Reference: UTC is 6 hours ahead of CST (CDT during daylight saving).

Common CST to UTC Conversions:
00:00 CST = 06:00 UTC | 06:00 CST = 12:00 UTC | 09:00 CST = 15:00 UTC | 12:00 CST = 18:00 UTC | 15:00 CST = 21:00 UTC | 18:00 CST = 00:00 UTC (next day)

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Time Offset
+6h
+5h when CST → CDT (Mar–Nov)
Date Line Crossover
After 6:00 PM CST
UTC moves to the next calendar day
Daylight Saving
CST: Mar–Nov
UTC: no DST - always UTC+0
Best Meeting Window
9:00 AM–11:00 AM CST
= 3:00 PM–5:00 PM UTC

Complete CST ↔ UTC Conversion Table

All 24 hours · Both DST seasons · Best meeting windows marked ★

Best overlap Next day in UTC
CST Time CST Standard Season  Standard
Nov–Mar  ·  UTC−6 → UTC+0  (+6h)
CDT Daylight Season  CDT
Mar–Nov  ·  CDT → UTC+0  (+5h)
12:00 AM (midnight)6:00 AM5:00 AM
1:00 AM7:00 AM6:00 AM
2:00 AM8:00 AM7:00 AM
3:00 AM9:00 AM8:00 AM
4:00 AM10:00 AM9:00 AM
5:00 AM11:00 AM10:00 AM
6:00 AM12:00 PM11:00 AM
7:00 AM1:00 PM12:00 PM
8:00 AM2:00 PM 1:00 PM
9:00 AM 3:00 PM 2:00 PM
10:00 AM 4:00 PM 3:00 PM
11:00 AM5:00 PM4:00 PM
12:00 PM (noon)6:00 PM5:00 PM
1:00 PM7:00 PM6:00 PM
2:00 PM8:00 PM7:00 PM
3:00 PM9:00 PM8:00 PM
4:00 PM10:00 PM9:00 PM
5:00 PM11:00 PM10:00 PM
6:00 PM+1 12:00 AM11:00 PM
7:00 PM+1 1:00 AM+1 12:00 AM
8:00 PM+1 2:00 AM+1 1:00 AM
9:00 PM+1 3:00 AM+1 2:00 AM
10:00 PM+1 4:00 AM+1 3:00 AM
11:00 PM+1 5:00 AM+1 4:00 AM
Best overlap: 9:00 AM–11:00 AM CST / = 3:00 PM–5:00 PM UTC +1 These times fall on the following calendar day

What is the time difference between CST and UTC?

UTC is 6 hours ahead of CST. When CST switches to CDT (March to November), the gap changes to 5 hours ahead of CDT. 9:00 AM CST = 3:00 PM UTC. 12:00 PM CST = 6:00 PM UTC. 5:00 PM CST = 11:00 PM UTC.

What is the best time to call from Chicago to UTC?

The business hours overlap between CST and UTC runs from 9:00 AM to 11:00 AM CST (3:00 PM to 5:00 PM UTC). Scheduling calls in this window keeps both sides within normal working hours.

Frequently Asked Questions about CST and UTC

UTC is 6 hours ahead of CST, so to convert mentally, add 6 hours to your CST time. For example: 9:00 AM CST = 3:00 PM UTC. Our converter automatically adjusts for Daylight Saving Time so you always get the right result.

UTC (Coordinated Universal Time, UTC+0) is 6 hours ahead of CST (Central Standard Time, UTC-6) during standard time. For example, 9:00 AM CST = 3:00 PM UTC. During DST periods, this difference changes by 1 hour when one or both zones observe Daylight Saving Time - our converter automatically applies the correct offset for any date you select.

The best overlap for standard business hours (9 AM–5 PM) in both zones is 09:00–11:00 CST = 15:00–17:00 UTC. Schedule recurring calls in this window to keep both sides within normal working hours. Remember to re-check the window in March and November (or March/October for European zones) when DST transitions can shift the overlap by 1 hour.

Yes. CST (Central Standard Time) observes Daylight Saving Time. Clocks spring forward to CDT (UTC-5) on the second Sunday in March, and fall back to CST on the first Sunday in November. During the DST period, the difference with UTC changes by 1 hour. Our converter always uses the current offset for the date you select.

Major cities in the CST (Central Standard Time, UTC-6) timezone include: Chicago, Dallas, Houston, Minneapolis, Kansas City, New Orleans, Winnipeg. These cities switch to CDT (UTC-5) from the second Sunday in March to the first Sunday in November.

Major cities in the UTC (Coordinated Universal Time, UTC+0) timezone include: UTC has no geographic location - it is the universal time reference used by aviation, the internet, meteorology, and global finance worldwide. UTC is a fixed-offset zone - these cities do not observe Daylight Saving Time.

UTC is 6 hours ahead of CST. The best overlap for business hours is 09:00–11:00 CST = 15:00–17:00 UTC. Always include both local times in calendar invites (for example, "2:00 PM CST / 8:00 PM UTC UTC"). Double-check around March and November (or March/October for European zones) when DST transitions can shift the offset by 1 hour. For full scheduling guidance, see our international meeting times guide.

Need more help? Check our complete FAQ section.

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