Bissau keeps UTC+0 (GMT) all year. There is no daylight saving time, so the clock never changes.
Bissau and your time
Bissau at a glance
| Country | Guinea-Bissau |
|---|---|
| Region | Bissau |
| Capital of | Guinea-Bissau |
| Time zone | Africa/Bissau |
| Abbreviation now | GMT |
| UTC offset now | UTC+0 |
| Daylight saving time | Not observed |
| Coordinates | 11.86° N, 15.60° W |
Time zone in Bissau
Bissau follows the Africa/Bissau time zone and stays on UTC+0 all year. The tz database records no daylight saving time here since 1970.
Bissau is the capital, and all of Guinea-Bissau keeps this time.
Clock changes in Bissau, 2026 and 2027
No clock changes are scheduled in Bissau for 2026 or 2027.
How far ahead or behind Bissau is
When it is 9:00 AM in Bissau, it is 4:00 AM in New York, 8:00 PM in Sydney and 1:00 AM in Los Angeles.
| City | Time now | Difference now | In January | In July | Shared office hours |
|---|---|---|---|---|---|
| New York (United States) | --:-- | 5 h behind | 5 h behind | 4 h behind | 3 h |
| Los Angeles (United States) | --:-- | 8 h behind | 8 h behind | 7 h behind | None |
| London (United Kingdom) | --:-- | Same time | Same time | 1 h ahead | 8 h |
| Paris (France) | --:-- | 1 h ahead | 1 h ahead | 2 h ahead | 7 h |
| Dubai (United Arab Emirates) | --:-- | 4 h ahead | 4 h ahead | 4 h ahead | 4 h |
| Mumbai (India) | --:-- | 5 h 30 min ahead | 5 h 30 min ahead | 5 h 30 min ahead | 2 h 30 min |
| Singapore | --:-- | 8 h ahead | 8 h ahead | 8 h ahead | None |
| Tokyo (Japan) | --:-- | 9 h ahead | 9 h ahead | 9 h ahead | None |
| Sydney (Australia) | --:-- | 11 h ahead | 11 h ahead | 10 h ahead | None |
| UTC | --:-- | Same time | Same time | Same time | 8 h |
Because Bissau keeps one offset all year, any change in the gap comes from the other city’s daylight saving time. Compare the January and July columns.
Shared office hours counts the time when the clock reads between 9 AM and 5 PM in both cities on the same day.
Daylight in Bissau
Today
| Sunrise | --:-- |
|---|---|
| Sunset | --:-- |
| Day length | -- |
| Solar noon | --:-- |
Close to the equator, days in Bissau last between 11 hours 26 minutes and 12 hours 49 minutes, so evenings get dark at about the same time all year.
Daylight through the year in Bissau
| Date | Sunrise | Sunset | Day length | |
|---|---|---|---|---|
| March equinox | March 20 | 7:07 AM | 7:13 PM | 12 h 7 min |
| June solstice | June 21 | 6:40 AM | 7:29 PM | 12 h 49 min |
| September equinox | September 23 | 6:52 AM | 6:58 PM | 12 h 6 min |
| December solstice | December 21 | 7:18 AM | 6:43 PM | 11 h 26 min |
Clock time and sun time in Bissau
Bissau sits well west of the centre of its time zone. On average the sun reaches its highest point at about 1:00 PM on standard time, not at 12:00. Mornings stay dark longer and evenings stay light later than the clock suggests.
Places close to Bissau
All the places listed below keep the same time as Bissau.
| City | Distance | Time now | Difference |
|---|---|---|---|
| Ziguinchor (Senegal) | 107 km (67 mi) | --:-- | Same time |
| Kolda (Senegal) | 135 km (84 mi) | --:-- | Same time |
| Kamsar (Guinea) | 172 km (107 mi) | --:-- | Same time |
| Banjul (Gambia) | 206 km (128 mi) | --:-- | Same time |
| Serrekunda (Gambia) | 211 km (131 mi) | --:-- | Same time |
| Kaolack (Senegal) | 260 km (161 mi) | --:-- | Same time |
| Tambacounda (Senegal) | 298 km (185 mi) | --:-- | Same time |
Same time now, different rules
These places read the same time as Bissau today but follow different rules, so they can drift apart when clocks change.
- London (United Kingdom)
- Dublin (Ireland)
- Lisbon (Portugal)
- Saint Helier (Jersey)
- Douglas (Isle of Man)
- St Peter Port (Guernsey)
Plan around the time in Bissau
- Convert a time to or from Bissau: pick a date and time and see it in every city on your list.
- Add Bissau to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Bissau and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What time zone is Bissau in?
Bissau uses the Africa/Bissau time zone, which is UTC+0 (GMT) all year.
Does Bissau use daylight saving time?
No. Bissau stays on UTC+0 all year, so the time difference to places without daylight saving time never changes.
What is the time difference between Bissau and New York?
Bissau is 5 hours ahead of New York in January and 4 hours ahead of New York in July, because New York moves its clocks for daylight saving time and Bissau does not.
How long is the longest day in Bissau?
About 12 hours 49 minutes, around the June solstice. The shortest day, around the December solstice, has about 11 hours 26 minutes of daylight.
Why is the sun not highest at noon in Bissau?
Clock time follows the time zone, not the sun. Bissau lies west of the line its offset is based on, so solar noon comes at about 1:00 PM on standard time.
Time zone rules: IANA tz database, version 2026e. Place names and coordinates: GeoNames. Sunrise and sunset are calculated from the coordinates and can differ by a minute or two from local almanacs.