CST to GMT Converter – Central Standard Time to Greenwich Mean Time
GMT is 6 hours ahead of CST. CST (Central Standard Time) is UTC-6, switching to CDT (UTC-5) during daylight saving, while GMT (Greenwich Mean Time) is UTC+0, switching to BST (UTC+1) during daylight saving. The live clocks below show the current time in both zones, updated every second.
CST to GMT Conversion Table (Hour by Hour)
Standard-time conversion from Central Standard Time to Greenwich Mean Time. During daylight saving periods the offset shifts by one hour - the live clocks above always show the correct current time.
| CST (UTC-6) | GMT (UTC+0) |
|---|---|
| 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 | 12:00 AM (next day) |
| 7:00 PM | 1:00 AM (next day) |
| 8:00 PM | 2:00 AM (next day) |
| 9:00 PM | 3:00 AM (next day) |
| 10:00 PM | 4:00 AM (next day) |
| 11:00 PM | 5:00 AM (next day) |
Frequently Asked Questions
What is the time difference between CST and GMT?
GMT is 6 hours ahead of CST. CST (Central Standard Time) is UTC-6 and GMT (Greenwich Mean Time) is UTC+0.
How do I convert CST to GMT?
Take your time in CST and add 6 hours. For example, 9:00 AM CST is 3:00 PM in GMT. The live clocks at the top of this page always show the current conversion.
Does daylight saving time affect CST to GMT conversion?
Yes. CST switches to CDT (UTC-5) in summer and GMT switches to BST (UTC+1) in summer, so the gap between the two zones changes during DST periods. The live clocks on this page use the IANA timezone database and always reflect the correct current offset automatically.
What is the best time for a meeting between CST and GMT?
Look for overlap between 9:00 AM-6:00 PM working hours in both zones using the conversion table above. GMT is 6 hours ahead of CST, so there is normally several hours of business-hours overlap.