Time in Guinea-Bissau Now

Guinea-Bissau follows Greenwich Mean Time (GMT), which runs on UTC +0 all year. The country does not observe Daylight Saving Time, so the time remains unchanged in every season. This helps maintain simple and consistent timekeeping for residents, travelers, and businesses.

Major cities such as Bissau, Bafatá, Gabú, Cacheu, and Bolama all use the same national time zone, which keeps scheduling and daily communication smooth across the country.

Guinea-Bissau Time Zone Information

• IANA Time Zone: Africa/Bissau

• UTC Offset: UTC +0 hour

• Time Zone Abbreviation: GMT (Greenwich Mean Time)

• DST: Not observed

• DST Abbreviation: None — time stays the same year-round

Guinea-Bissau shares its time with nearby West African countries that also use GMT.

Guinea-Bissau time zone(s)

The official IANA identifier for Guinea-Bissau is Africa/Bissau.

Daylight Saving Time in Guinea-Bissau

Guinea-Bissau does not observe Daylight Saving Time.
The country stays on UTC +0 throughout the year, ensuring stable timekeeping nationwide.

Major cities in Guinea-Bissau & their time

All major cities follow the same national time zone.

Brief info for Guinea-Bissau time

• Number of time zones: 1

• Capital city: Bissau

• Default time: Greenwich Mean Time (GMT)

• Daylight Saving Time: Not used

• IANA Time Zone ID: Africa/Bissau

• Standard UTC Offset: UTC +0

• Neighbouring countries with same time: Senegal, Guinea

• Regional differences: None — the entire country uses the same time

Pros and Cons

Pros

1. One national time zone makes timekeeping simple.

2. UTC +0 aligns with several West African countries.

3. No DST — no seasonal clock changes.

4. Convenient for regional travel and communication.

5. Predictable time throughout the year.

Cons

1. Limited overlap with Asian and American time zones.

2. No DST means seasonal daylight variation is noticeable.