Africa · Western Africa · Sovereign state
Current time in Guinea-Bissau
A single time zone at null.
Wednesday, October 14, 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.
Under Portuguese rule, Guinea-Bissau kept time at UTC-01:00 from 1912. On January 1, 1975, shortly after Portugal recognized its independence in 1974, the country moved to Greenwich Mean Time (UTC+0). It has stayed on UTC+0 year-round since, with no daylight saving time.
Convert
Guinea-Bissau to the world's clocks.
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, Greenwich Mean Time (UTC+0).
- How does Guinea-Bissau's time compare to neighboring countries?
- Guinea-Bissau's neighbors Senegal and Guinea also use UTC+0 year-round, so all three countries share the same clock time.
Source: IANA tzdb2026d · Reviewed
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