CST to GMT Converter
Convert time between Central Standard Time (CST) and Greenwich Mean Time.
Convert a specific time
- IndiaIST, UTC+5:30
- Eastern Time – New YorkEST, UTC-5
- Central Time – ChicagoCST, UTC-6
- Mountain Time – DenverMST, UTC-7
- Arizona – PhoenixMST, UTC-7
- Pacific Time – Los AngelesPST, UTC-8
- Mexico CityCST, UTC-6
- Saskatchewan – ReginaCST, UTC-6
- UTC / GMTUTC, UTC+0
- United Kingdom – LondonGMT, UTC+0
- Central Europe – Paris, BerlinCET, UTC+1
- Gulf – DubaiGST, UTC+4
- SingaporeSGT, UTC+8
- Japan – TokyoJST, UTC+9
- Australia Eastern – SydneyAEDT, UTC+11
- EST (always UTC-5)Fixed offset, no DST
- CST (always UTC-6)Fixed offset, no DST
- MST (always UTC-7)Fixed offset, no DST
- PST (always UTC-8)Fixed offset, no DST
- IndiaIST, UTC+5:30
- Eastern Time – New YorkEST, UTC-5
- Central Time – ChicagoCST, UTC-6
- Mountain Time – DenverMST, UTC-7
- Arizona – PhoenixMST, UTC-7
- Pacific Time – Los AngelesPST, UTC-8
- Mexico CityCST, UTC-6
- Saskatchewan – ReginaCST, UTC-6
- UTC / GMTUTC, UTC+0
- United Kingdom – LondonGMT, UTC+0
- Central Europe – Paris, BerlinCET, UTC+1
- Gulf – DubaiGST, UTC+4
- SingaporeSGT, UTC+8
- Japan – TokyoJST, UTC+9
- Australia Eastern – SydneyAEDT, UTC+11
- EST (always UTC-5)Fixed offset, no DST
- CST (always UTC-6)Fixed offset, no DST
- MST (always UTC-7)Fixed offset, no DST
- PST (always UTC-8)Fixed offset, no DST
Time Difference
Central Time is 6 hours behind Greenwich Mean Time right now.
- Now until Mar 14, 2027: Central Time is 6 hours behind Greenwich Mean Time (CST → UTC).
- From Mar 14, 2027: Central Time is 5 hours behind Greenwich Mean Time (CDT → UTC).
Central Time is on CST right now
Best time to call
Convenient overlapping hours on Tuesday, November 3, 2026.
| CST (Central Time) | UTC (Greenwich Mean Time) |
|---|---|
| 9:00 AM | 3:00 PM |
| 10:00 AM | 4:00 PM |
These hours fall within 9 AM–5 PM in both places.
Convert another time zone Plan a meeting across CST and GMTCST to GMT conversion table
For Tuesday, November 3, 2026 in Central Time.
| CST | UTC |
|---|---|
| 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) |
About these time zones
Central Standard Time (CST)
Central Standard Time (CST) is UTC-6. Most of the central United States and Manitoba use CST only in winter and switch to Central Daylight Time (CDT, UTC-5) from the second Sunday in March to the first Sunday in November. Most of Saskatchewan, most of Mexico and much of Central America stay on CST all year.
Greenwich Mean Time (GMT)
Greenwich Mean Time (GMT) is the time at UTC+0. GMT and UTC show the same clock time; UTC is the scientific standard, while GMT is a time zone name. The United Kingdom and Ireland use GMT only in winter: in summer the UK switches to British Summer Time (BST, UTC+1) and Ireland to Irish Standard Time (IST, UTC+1).
CST to GMT FAQs
What time is it in GMT when it is 9 AM CST?
On Tuesday, November 3, 2026, 9:00 AM CST is 3:00 PM UTC in Greenwich Mean Time.
How many hours ahead is CST from GMT?
It depends on the time of year because of daylight saving time. Now until Mar 14, 2027: Central Time is 6 hours behind Greenwich Mean Time (CST → UTC). From Mar 14, 2027: Central Time is 5 hours behind Greenwich Mean Time (CDT → UTC).
What is the best time for a call between CST and GMT?
On Tuesday, November 3, 2026, good options are 9:00 AM CST (3:00 PM UTC), 10:00 AM CST (4:00 PM UTC). These fall within normal 9 AM–5 PM working hours in both places.
Does CST change for daylight saving time?
The region changes: Central Time switches between CST and CDT, so conversions depend on the date. CST itself always means UTC-6.
Does GMT change for daylight saving time?
No. GMT stays at UTC+0 all year.