Houston Time to GMT Converter
GMT is 6 hours ahead of CST. 9:00 AM CST = 3:00 PM GMT.
GMT is 6 hours ahead of CST at the moment. To convert Houston Time to GMT, add 6 hours to the Houston Time time: 9:00 AM CST = 3:00 PM GMT.
Houston Time (Houston time) is used in Houston, USA. GMT (GMT) is used in Same offset as UTC. The UK and Ireland use GMT in winter; Iceland, Ghana and Senegal all year.
The UK is on GMT only in winter; in summer it uses BST (UTC+1).
Houston Time to GMT time conversion table
Houston Time to GMT on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Houston Time | GMT | Day |
|---|---|---|
| 12:00 AM CST | 6:00 AM GMT | — |
| 1:00 AM CST | 7:00 AM GMT | — |
| 2:00 AM CST | 8:00 AM GMT | — |
| 3:00 AM CST | 9:00 AM GMT | — |
| 4:00 AM CST | 10:00 AM GMT | — |
| 5:00 AM CST | 11:00 AM GMT | — |
| 6:00 AM CST | 12:00 PM GMT | — |
| 7:00 AM CST | 1:00 PM GMT | — |
| 8:00 AM CST | 2:00 PM GMT | — |
| 9:00 AM CST | 3:00 PM GMT | work hours |
| 10:00 AM CST | 4:00 PM GMT | work hours |
| 11:00 AM CST | 5:00 PM GMT | — |
| 12:00 PM CST | 6:00 PM GMT | — |
| 1:00 PM CST | 7:00 PM GMT | — |
| 2:00 PM CST | 8:00 PM GMT | — |
| 3:00 PM CST | 9:00 PM GMT | — |
| 4:00 PM CST | 10:00 PM GMT | night |
| 5:00 PM CST | 11:00 PM GMT | night |
| 6:00 PM CST | 12:00 AM GMT | next day |
| 7:00 PM CST | 1:00 AM GMT | next day |
| 8:00 PM CST | 2:00 AM GMT | next day |
| 9:00 PM CST | 3:00 AM GMT | next day |
| 10:00 PM CST | 4:00 AM GMT | next day |
| 11:00 PM CST | 5:00 AM GMT | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert Houston Time to GMT
Add 6 hours to the Houston Time time to get GMT.
Example: 9:00 AM CST = 3:00 PM GMT.
Across midnight: 10:00 PM CST = 4:00 AM GMT (next day). The date changes, so always check the day as well as the hour.
Time difference between Houston Time and GMT
The time difference between Houston Time and GMT is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 31 Dec 2025 – 7 Mar 2026: GMT is 6 hours ahead of Houston Time.
- 8 Mar 2026 – 31 Oct 2026: GMT is 5 hours ahead of Houston Time.
- 1 Nov 2026 – 30 Dec 2026: GMT is 6 hours ahead of Houston Time.
Houston Time and GMT during daylight saving time
- Houston Time next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from CST (UTC−6) to CDT (UTC−5).
- GMT does not observe daylight saving time; it stays on UTC+0 all year.
Best time for a meeting between Houston Time and GMT
Houston Time and GMT share 2 hours of the 9 AM–5 PM working day. Any time between 9:00 AM and 11:00 AM CST lands between 3:00 PM and 5:00 PM GMT, inside working hours for both.
Houston Time to GMT FAQ
What is the time difference between Houston Time and GMT?
Right now GMT is 6 hours ahead of CST. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM Houston Time in GMT?
9:00 AM CST is 3:00 PM GMT.
What is 12 PM (noon) Houston Time in GMT?
12:00 PM CST is 6:00 PM GMT.
Is GMT ahead of or behind Houston Time?
GMT is 6 hours ahead of CST, so it is later in GMT than in Houston Time.
Does Houston Time change for daylight saving time?
Yes. Houston Time next changes on 14 Mar 2027, when clocks go forward one hour from CST to CDT.
Does GMT change for daylight saving time?
No. GMT stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between Houston Time and GMT?
Houston Time and GMT share 2 hours of the 9 AM–5 PM working day. Any time between 9:00 AM and 11:00 AM CST lands between 3:00 PM and 5:00 PM GMT, inside working hours for both.
Related conversions
Convert GMT to Houston Time
Convert Houston Time to other time zones
Convert other time zones to GMT
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.