GMT to CST ConverterRight in Your Browser
Convert Greenwich Mean Time (GMT) to Central Time (CST). GMT covers the Greenwich meridian — the reference for aviation, shipping and world time. CST covers the central United States — Chicago, Dallas, Houston and New Orleans. Everything is calculated locally in your browser — no server, and it works offline.
4:00 AM
in CST (Central Time)
CST is currently 5 hours behind GMT.
Current time in GMT
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Current time in CST
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GMT to CST Chart
| GMT | CST |
|---|---|
| 12:00 AM | 7:00 PM (previous day) |
| 1:00 AM | 8:00 PM (previous day) |
| 2:00 AM | 9:00 PM (previous day) |
| 3:00 AM | 10:00 PM (previous day) |
| 4:00 AM | 11:00 PM (previous day) |
| 5:00 AM | 12:00 AM |
| 6:00 AM | 1:00 AM |
| 7:00 AM | 2:00 AM |
| 8:00 AM | 3:00 AM |
| 9:00 AM | 4:00 AM |
| 10:00 AM | 5:00 AM |
| 11:00 AM | 6:00 AM |
| 12:00 PM | 7:00 AM |
| 1:00 PM | 8:00 AM |
| 2:00 PM | 9:00 AM |
| 3:00 PM | 10:00 AM |
| 4:00 PM | 11:00 AM |
| 5:00 PM | 12:00 PM |
| 6:00 PM | 1:00 PM |
| 7:00 PM | 2:00 PM |
| 8:00 PM | 3:00 PM |
| 9:00 PM | 4:00 PM |
| 10:00 PM | 5:00 PM |
| 11:00 PM | 6:00 PM |
Frequently Asked Questions
How many hours ahead is CST of GMT?
CST is currently 5 hours behind GMT. GMT is Greenwich Mean Time (Etc/GMT); CST is Central Time (America/Chicago).
What time is 9:00 AM GMT in CST?
9:00 AM GMT is 4:00 AM CST today. Use the converter above for any other time — it calculates with today's actual offsets.
Do GMT and CST observe daylight saving time?
Partially — GMT stays fixed year-round, while CST switches to CDT (UTC-5) from March to November. This converter uses today's real offsets, so daylight saving is always accounted for automatically.
When is the best time for a meeting between GMT and CST?
Working hours overlap between 2:00 PM and 6:00 PM GMT (9:00 AM–1:00 PM CST) — schedule meetings in that window so both sides stay inside a normal workday.