UTC sits at UTC+0; CST sits at UTC-6. That puts CST 6 hours behind of UTC.
Convert a time
Converted time
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—
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That local time does not exist on this date — clocks jump forward over it. Showing the time 60 minutes later instead.
That local time happens twice on this date, because clocks go back. Showing the first, earlier occurrence.
Hour by hour
Computed on a date when UTC is genuinely in force — using today would be wrong for half the year, because a standard-time abbreviation does not exist in summer.
UTC
CST
00:00
18:00previous day
01:00
19:00previous day
02:00
20:00previous day
03:00
21:00previous day
04:00
22:00previous day
05:00
23:00previous day
06:00
00:00
07:00
01:00
08:00
02:00
09:00
03:00
10:00
04:00
11:00
05:00
12:00
06:00
13:00
07:00
14:00
08:00
15:00
09:00
16:00
10:00
17:00
11:00
18:00
12:00
19:00
13:00
20:00
14:00
21:00
15:00
22:00
16:00
23:00
17:00
What these abbreviations actually are
UTC
CST
Full name
Coordinated Universal Time
Central Standard Time
Representative zone
UTC
America/Chicago
Offset
UTC+0
UTC-6
Seasonal
Standard time
Standard time
Zone changes in 2026
0
2
Other meanings
None in common use
2
Common questions
What is the difference between UTC and CST?
CST is 6 hours behind of UTC. UTC means Coordinated Universal Time at UTC+0, and CST means Central Standard Time at UTC-6.
Which time zone does this page use for UTC?
UTC. An abbreviation is not a time zone — it is a label a zone wears for part of the year — so every calculation here uses a named IANA zone and says which one. If you are writing code, use UTC rather than the string "UTC".
Does CST mean anything else?
Yes: China Standard Time at UTC+8, and Cuba Standard Time at UTC-5. The whole of China runs on one zone, fourteen hours ahead of the American CST.
Is UTC a daylight saving abbreviation?
No. UTC is the standard-time abbreviation. When daylight saving is in force, the same zone uses a different one.
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