Africa · Saint Helena, Ascension and Tristan da Cunha
Current time in Jamestown
Greenwich Mean Time.
Thursday, October 15, 2026
Daylight saving
Not observed
This zone has no seasonal clock change.
About Jamestown time
Jamestown keeps one clock.
In Jamestown, capital of Saint Helena, business hours roll along at an easygoing GMT pace, with sunrise coming early enough that many meetings wrap up before midday.
Convert
Jamestown to the world's clocks.
Frequently asked questions
Common questions about Jamestown's time zone, daylight saving rules, and scheduling across it. Can't find what you need? Email [email protected].
- What time zone is Jamestown in?
- Jamestown observes Atlantic/St_Helena, which is GMT with no daylight saving adjustments year-round.
- Does Saint Helena observe daylight saving time?
- No, Atlantic/St_Helena stays at GMT throughout the year—clocks never change.
- What UTC offset does Jamestown use?
- The offset is UTC+0, matching Greenwich Mean Time exactly.
- How does Jamestown's location affect scheduling with the UK?
- Since both the UK and Saint Helena share GMT in winter, coordination is straightforward, though the UK springs forward in summer, creating a one-hour difference then.
- Is Jamestown's time zone unique?
- It is one of the few settlements in the Atlantic using GMT without daylight saving, making it distinct from neighboring regions.
- Whatʼs the longitude of Jamestown?
- Jamestown sits at roughly 5.7°W, placing it just west of the Greenwich Meridian.
- How does sunrise affect the workday?
- With early sunrises, the local team often starts the workday ahead of many global counterparts.
- What is the population of Jamestown?
- Exact figures are not provided here, but Jamestown serves as Saint Helena's administrative hub.
- Does the time zone ever shift for Saint Helena?
- No, Atlantic/St_Helena remains fixed at GMT, so there are no seasonal clock changes to track.
Free · Developer API
This city's time zone, as JSON.
The time zone behind Jamestown: its live offset, abbreviation and DST status, from one endpoint.
Also in the API: time zones by coordinates, conversions that flag daylight saving gaps, and abbreviations decoded.
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