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CST to GMT Converter

Convert time between Central Standard Time (CST) and Greenwich Mean Time.

Central Time

(CDT)

--:--

Sat, Sep 19

Greenwich Mean Time

(UTC)

--:--

Sat, Sep 19

Convert a specific time

6:00 PMSat, Sep 19, 2026 · UTC (UTC+0)GMT is 5 hours ahead of CST on this date.

Time Difference

Central Time is 5 hours behind Greenwich Mean Time right now.

  • Now until Nov 1, 2026: Central Time is 5 hours behind Greenwich Mean Time (CDT → UTC).
  • Nov 1, 2026 – 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 CDT right now, not CST

CDT is UTC-5, 1 hour ahead of CST (UTC-6). Central Time returns to CST on Sunday, November 1, 2026 at 2:00 AM. Places that stay on CST all year, such as Mexico City, Guadalajara, Guatemala City, León, Mérida, Monterrey, Puebla, Querétaro, San José, Zapopan, Regina and Saskatoon, are on UTC-6 now.

Best time to call

Convenient overlapping hours on Saturday, September 19, 2026.

Suggested call times
CST (Central Time)UTC (Greenwich Mean Time)
9:00 AM2:00 PM
10:00 AM3:00 PM
11:00 AM4:00 PM

These hours fall within 9 AM–5 PM in both places.

Convert another time zone Plan a meeting across CST and GMT

CST to GMT conversion table

For Saturday, September 19, 2026 in Central Time.

Hourly conversion from CST to Greenwich Mean Time
CDTUTC
12:00 AM5:00 AM
1:00 AM6:00 AM
2:00 AM7:00 AM
3:00 AM8:00 AM
4:00 AM9:00 AM
5:00 AM10:00 AM
6:00 AM11:00 AM
7:00 AM12:00 PM
8:00 AM1:00 PM
9:00 AM2:00 PM
10:00 AM3:00 PM
11:00 AM4:00 PM
12:00 PM5:00 PM
1:00 PM6:00 PM
2:00 PM7:00 PM
3:00 PM8:00 PM
4:00 PM9:00 PM
5:00 PM10:00 PM
6:00 PM11:00 PM
7:00 PM12:00 AM(next day)
8:00 PM1:00 AM(next day)
9:00 PM2:00 AM(next day)
10:00 PM3:00 AM(next day)
11:00 PM4:00 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 Saturday, September 19, 2026, 9:00 AM CDT is 2:00 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 Nov 1, 2026: Central Time is 5 hours behind Greenwich Mean Time (CDT → UTC). Nov 1, 2026 – Mar 14, 2027: Central Time is 6 hours behind Greenwich Mean Time (CST → UTC).

What is the best time for a call between CST and GMT?

On Saturday, September 19, 2026, good options are 9:00 AM CDT (2:00 PM UTC), 10:00 AM CDT (3:00 PM UTC), 11:00 AM CDT (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.

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