Timezone Insight
The timezone in Houston is America/Chicago (CDT).
Its current offset is GMT-05:00 (GMT-5).
What is the Timezone of Houston?
Detailed facts, current offset, DST status, and real-time data for the America/Chicago timezone used by Houston, USA.
IANA Timezone Data
How to convert from America/Chicago to UTC
Converting a time from America/Chicago to UTC is straightforward:
For example, if it is 12:00 in Houston, it is 17:00 UTC.
To convert the other way (UTC to Houston), add -5 hours to the UTC time. The offset changes by ±1 hour during daylight saving transitions in spring and fall.
About the America/Chicago timezone
America/Chicago is an IANA time zone identifier — the canonical, globally unique name for the civil time observed in Houston, USA. Every operating system, programming language, and calendar product that supports time zones recognises this string and uses it to compute the correct local time for any given moment.
IANA time zones are maintained by the Internet Assigned Numbers Authority (IANA) and track the historical, current, and planned future civil time of every region — including daylight saving time (DST) transitions, country-level changes, and historical anomalies. This is why software like macOS, Linux, Windows, and major cloud services all use the same identifiers.
Related time zones in the America region
America/New_YorkAmerica/DenverAmerica/Los_AngelesAmerica/TorontoAmerica/Mexico_CityAmerica/Sao_Paulo
Related tools
- See the current local time in Houston.
- Use the Houston vs London time difference calculator.
- Check how many hours of daylight Houston gets today.
- See the sunrise & sunset times in Houston.