CST to GMT Time Converter
Convert Central Time to Greenwich Mean Time instantly.
Scroll the timeline to check any hour of the day.
Central Time
CST
1:06
Greenwich Mean Time
GMT
6:06
CST is on daylight savings (CDT) right now, while GMT stays at UTC+0 all year.
Search any city, build a custom world clock, and plan across more time zones and options in the FlutterTime app. Free.
How the CST to GMT time difference works
GMT is 5 hours ahead of CST. Central Time (CST) is the US Central time zone. Greenwich Mean Time (GMT) is the fixed UTC+0 reference time, used by the United Kingdom and Ireland in winter. For example, 9:00 AM CST is 2:00 PM GMT. Scroll the timeline above to convert any moment, or use the chart below for a quick reference.
Time difference
5 hours
Daylight saving
CST only
CST offset
UTC-6
GMT offset
UTC+0
CST to GMT conversion chart
| Central Time (CST) | Greenwich Mean Time (GMT) |
|---|---|
| 12:00 AM | 5:00 AM |
| 1:00 AM | 6:00 AM |
| 2:00 AM | 7:00 AM |
| 3:00 AM | 8:00 AM |
| 4:00 AM | 9:00 AM |
| 5:00 AM | 10:00 AM |
| 6:00 AM | 11:00 AM |
| 7:00 AM | 12:00 PM |
| 8:00 AM | 1:00 PM |
| 9:00 AM | 2:00 PM |
| 10:00 AM | 3:00 PM |
| 11:00 AM | 4:00 PM |
| 12:00 PM | 5:00 PM |
| 1:00 PM | 6:00 PM |
| 2:00 PM | 7:00 PM |
| 3:00 PM | 8:00 PM |
| 4:00 PM | 9:00 PM |
| 5:00 PM | 10:00 PM |
| 6:00 PM | 11:00 PM |
| 7:00 PM | 12:00 AM +1 day |
| 8:00 PM | 1:00 AM +1 day |
| 9:00 PM | 2:00 AM +1 day |
| 10:00 PM | 3:00 AM +1 day |
| 11:00 PM | 4:00 AM +1 day |
Best time to meet
A standard 9 to 5 workday overlaps from 9:00 AM to 12:00 PM CST (2:00 PM to 5:00 PM GMT). Schedule inside that window to catch both coasts during business hours.
Cities in each time zone
Central Time (CST)
ChicagoHoustonDallasAustinNew OrleansMinneapolis
Greenwich Mean Time (GMT)
LondonDublinLisbonEdinburghManchester
CST to GMT questions
Is GMT ahead of or behind CST?
GMT is 5 hours ahead of CST. So 9:00 AM CST is 2:00 PM GMT, and 5:00 PM CST is 10:00 PM GMT.
What time is it in GMT when it is 12:00 PM CST?
When it is 12:00 PM (noon) CST in Central Time, it is 5:00 PM GMT in Greenwich Mean Time.
How many hours difference is there between CST and GMT?
There is a 5 hours difference. Greenwich Mean Time (GMT) runs 5 hours ahead of Central Time (CST).
Do CST and GMT observe daylight saving time?
Central Time observes daylight saving time but Greenwich Mean Time does not, so the difference between them changes by an hour twice a year. The United Kingdom and Ireland use GMT only in winter; from late March to late October they switch to British Summer Time (BST), one hour ahead of GMT.
What is the best time to schedule a meeting between CST and GMT?
A standard 9-to-5 workday overlaps from 9:00 AM to 12:00 PM CST (2:00 PM to 5:00 PM GMT). Scheduling inside that window keeps the call during business hours in both Central Time and Greenwich Mean Time.
Which cities use CST and GMT?
Central Time (CST) covers cities such as Chicago, Houston, Dallas, Austin, New Orleans, Minneapolis. Greenwich Mean Time (GMT) covers cities such as London, Dublin, Lisbon, Edinburgh, Manchester.