Africa · Western Africa · Sovereign state
Current time in Guinea-Bissau
A single time zone at null.
Friday, June 5, 2026
About Guinea-Bissau's time
A single time zone.
Guinea-Bissau operates on a single time zone, Greenwich Mean Time (UTC+0), with no daylight saving time adjustments, keeping things straightforward for scheduling and communication with neighboring West African countries that also use this offset.
Major cities
Cities of Guinea-Bissau.
History
How Guinea-Bissau keeps time.
Upon gaining independence from Portugal in 1973–1974, Guinea-Bissadopted the Greenwich Mean Time (UTC+0) time zone. This choice followed the practice of the Portuguese mainland whose territories had historically aligned with GMT. Unlike many countries, there have been no significant changes or adjustments to timekeeping practices in Guinea-Bissau since its adoption in the early 1970s, maintaining consistency for residents and international partners.
Frequently asked questions
Common questions about Guinea-Bissau's time zone, daylight saving rules, and how to handle it in software. Can't find what you need? Email [email protected].
- What time zone is used in Guinea-Bissau?
- Guinea-Bissau uses the Greenwich Mean Time (UTC+0) zone. There is no daylight saving time observed, so the offset remains constant year-round.
- Is there daylight saving time in Guinea-Bissau?
- No, Guinea-Bissau does not observe daylight saving time. The country remains on UTC+0 all year.
- Is the entire country on one time zone?
- Yes, all of Guinea-Bissau operates on the same single time zone, Africa/Bissau, which is equivalent to UTC+0.
- How does Guinea-Bissau's time compare to neighboring countries?
- Which countries share the same UTC+0 offset. This can facilitate cross-border business and travel scheduling in the region, often referred to interchangeably as GMT or UTC+0.
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