Houston Time to GMT Converter
Convert Houston, Texas time (CDT) to Greenwich Mean Time (GMT/UTC)
Houston (CDT)
Tuesday, June 16, 2026
GMT / UTC
Tuesday, June 16, 2026
Houston is currently 5 hours behind GMT (CDT → GMT: add 5 hours)
Houston to GMT Conversion Table
Highlighted rows indicate Houston business hours (8 AM – 5 PM)
About Houston Time and GMT
Greenwich Mean Time (GMT) is the time at the Royal Observatory in Greenwich, London. It is often used interchangeably with Coordinated Universal Time (UTC), though they differ slightly in technical definition. GMT does not observe daylight saving time.
Houston, Texas observes Central Standard Time (CST, UTC−6:00) during winter and Central Daylight Time (CDT, UTC−5:00) during summer. This means the gap between Houston and GMT shifts between 5 and 6 hours throughout the year.
When to Use Houston to GMT Conversion
- International business: Many global companies schedule meetings using GMT/UTC as a neutral reference
- Aviation: All flight times in the aviation industry use UTC (Zulu time)
- Software development: Server timestamps, APIs, and databases often use UTC
- Military: The US military uses Zulu time (UTC/GMT) for coordination
- Scientific research: Research data is typically timestamped in UTC
Related Converters
Need to convert Houston time to other zones? Try our full time zone converter, the CST to EST converter, or the CST to PST converter.