GMT to Houston Time Converter
Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
3:30 pm15:30 GMT (UTC+0), Nov 1, 2026 = 9:30 am09:30 CST (UTC-6), Nov 1, 2026
GMT is 6 hours ahead of Houston.
How the time difference changes
For most of the year, GMT is 5 hours ahead of Houston. From Nov 1, 2026 to Mar 14, 2027, GMT is 6 hours ahead of Houston.
For most of the year, working hours of 9:00 am to 6:00 pm in GMT correspond to 4:00 am to 1:00 pm in Houston. At other times of the year, working hours of 9:00 am to 6:00 pm in GMT correspond to 3:00 am to 12:00 pm in Houston.For most of the year, working hours of 09:00 to 18:00 in GMT correspond to 04:00 to 13:00 in Houston. At other times of the year, working hours of 09:00 to 18:00 in GMT correspond to 03:00 to 12:00 in Houston.
Compare GMT time with Houston time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Greenwich Mean Time is 6 hours ahead of CST (Central Standard Time).
3:30 pm15:30 in GMT is 9:30 am09:30 in Houston, TX, USA
GMT to Houston call time
Best time for a conference call or a meeting is between 3pm-6pm15:00-18:00 in GMT which corresponds to 9am-12pm09:00-12:00 in Houston
3:30 pm15:30 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
9:30 am09:30 CST (Central Standard Time) (Houston, TX, USA). Offset UTC -6:00 hours
3:30 pm15:30 GMT / 9:30 am09:30 Houston, TX, USA
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| GMT | Houston, TX, USA |
|---|---|
| 7:00pm previous day CDT UTC-5 | |
| 8:00pm previous day CDT UTC-5 | |
| 9:00pm previous day CDT UTC-5 | |
| 10:00pm previous day CDT UTC-5 | |
| 11:00pm previous day CDT UTC-5 | |
| 12:00am CDT UTC-5 | |
| 1:00am CDT UTC-5 | |
| 1:00am | |
| 2:00am | |
| 3:00am | |
| 4:00am | |
| 5:00am | |
| 6:00am | |
| 7:00am | |
| 8:00am | |
| 9:00am | |
| 10:00am | |
| 11:00am | |
| 12:00pm | |
| 1:00pm | |
| 2:00pm | |
| 3:00pm | |
| 4:00pm | |
| 5:00pm | |
| 19:00 previous day CDT UTC-5 | |
| 20:00 previous day CDT UTC-5 | |
| 21:00 previous day CDT UTC-5 | |
| 22:00 previous day CDT UTC-5 | |
| 23:00 previous day CDT UTC-5 | |
| 00:00 CDT UTC-5 | |
| 01:00 CDT UTC-5 | |
| 01:00 | |
| 02:00 | |
| 03:00 | |
| 04:00 | |
| 05:00 | |
| 06:00 | |
| 07:00 | |
| 08:00 | |
| 09:00 | |
| 10:00 | |
| 11:00 | |
| 12:00 | |
| 13:00 | |
| 14:00 | |
| 15:00 | |
| 16:00 | |
| 17:00 |
Greenwich Mean Time
Offset: GMT is the same as Greenwich Mean Time (GMT).
Countries using this time zone: Antarctica, Burkina Faso, Gambia, Ghana, Greenland, Guernsey, Guinea, Guinea-Bissau, Iceland, Ireland, Isle of Man, Ivory Coast, Jersey, Liberia, Mali, Mauritania, Morocco, Saint Helena, São Tomé and Príncipe, Senegal, Sierra Leone, Togo, United Kingdom, Western Sahara
Principal Cities: The largest city in the GMT time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Abidjan, Bamako, Casablanca, Dakar.
Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use the two are the same. In the military, GMT is known as Zulu time. Greenwich Mean Time was the same as Universal Time (UT), a standard astronomical concept used in many technical fields, until the introduction of UTC in 1972.
Today all shaded areas are on GMT.
GMT representations, usage and related time zones
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
- Zulu - Military abbreviation for GMT
- Z - short form of 'Zulu'
- Africa/Abidjan
- Africa/Accra
- Africa/Bamako
- Africa/Banjul
- Africa/Bissau
- Africa/Conakry
- Africa/Dakar
- Africa/Freetown
- Africa/Lome
- Africa/Monrovia
- Africa/Nouakchott
- Africa/Ouagadougou
- Africa/Sao_Tome
- Africa/Timbuktu
- America/Danmarkshavn
- Atlantic/Reykjavik
- Atlantic/St_Helena
- Eire
- Etc/GMT
- Etc/GMT+0
- Etc/GMT-0
- Etc/GMT0
- Etc/Greenwich
- Europe/Belfast
- Europe/Dublin
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
- GMT
- GMT+0
- GMT-0
- GMT0
- Greenwich
- Iceland
- EGST - Eastern Greenland Summer Time
- GMT - Greenwich Mean Time
- WET - Western European Time
- AZOST - Azores Summer Time
- UTC - Coordinated Universal Time
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone
Houston Time Zone and Facts
Time Zone
CDT – Central Daylight Time, UTC-5 (daylight saving time)