--:--:--
—
Chicago · Houston · Dallas
Need overlap across regions? Open the international meeting planner.
Difference
GMT vs CST
UTC → UTC
--:--:--
—
London · Reykjavik · Accra
CST to GMT converter
Convert CST to GMT time now
Free CST to GMT converter. See Central Standard Time and Greenwich Mean Time side by side. Live clocks, a 6 hours gap, meeting hours, and a full-day chart for Chicago and London.
America/Chicago
—
CST → GMT
To · Greenwich Mean Time
—
Etc/UTC
Interactive diagram
Watch CST convert into GMT
Drag the Central hour. Watch the GMT clock change.
Central
9:00 AM CST
—
GMT ← CST
GMT
—
Full-day chart
CST to GMT hourly conversion chart
Full-day table. Tap a row to copy. Labels follow daylight saving.
| Central | GMT | UTC offsets |
|---|
Meeting times
Best CST to GMT meeting window
Find hours that work on both sides. Then save the slot to your calendar.
Follow along
Step-by-step CST to GMT conversion
Four short steps to convert any CST time to GMT.
Choose CST time
Select any hour in Central Standard Time. Smart mode uses America/Chicago.
CST to GMT conversion guide
CST to GMT conversion guide
This CST to GMT converter shows Greenwich Mean Time (UTC±0) for any Central Standard Time (UTC−6) time. Use it to schedule between Chicago and London. Choose Smart DST for live city clocks. Choose Fixed mode when you only want the CST and GMT labels.
Central
CST
UTC−6
Chicago · Houston · Dallas
CST vs GMT—
GMT
GMT
UTC±0
London · Reykjavik · Accra
What is CST to GMT conversion?
CST to GMT conversion turns a CST clock into the matching GMT time. Use it for calls, travel, and teams in Chicago and London.
CST to GMT time difference
GMT is 6 hours ahead of CST. Add 6 hours to the CST time to get GMT. The live clocks at the top show the current CST to GMT gap.
CST vs GMT
CST is UTC−6. GMT is UTC±0. They are different names. If a region uses daylight saving, check the live labels.
CST to GMT now / current time
Need cst to gmt right now? Read the live clocks, or tap Use current time for an instant CST → GMT result.
CST to GMT time difference
Season / context — tap to explore
See how daylight saving can change this pair.
Central—
—CST → GMT
GMT—
Quick answers
Central
Central Standard Time (CST)
UTC−6
Central Standard Time (CST) is UTC−6. Smart DST uses the city clock America/Chicago so daylight saving stays correct for Chicago · Houston · Dallas.
- Cities: Chicago · Houston · Dallas
- City clock: America/Chicago
- Fixed CST: UTC−6
- On this page it pairs with GMT (UTC±0)
GMT
Greenwich Mean Time (GMT)
UTC±0
Same as UTC+0 here. London often uses BST in summer.
- Cities: London · Reykjavik · Accra
- City clock: Etc/UTC
- Fixed GMT: UTC±0
- From CST: GMT is 6 hours ahead of CST
CST to GMT FAQ