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In Guinea Bissau, there is only one time zone in use: Greenwich Mean Time, GMT (UTC+00). Time in Guinea Bissau does not change because it does not observe Daylight Saving Time.
For comparing the current time in Guinea Bissau and United Kingdom or any other country combination, visit time comparison. For an introduction to UTC and world time, read UTC by country. Time changes in Guinea Bissau are shown below by city, state or region.
| Regions | Standard Time | Daylight Saving Time | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Time zone | 2016 | 2017 | 2018 | Time zone | 2016 | 2017 | 2018 | |||
| Greenwich Mean Time GMT (UTC+00) | UTC+00 all year long | No Daylight Saving Time | |||||||
The information in this page comes from data published in the Time Zone Database managed by the Internet Assigned Numbers Authority (IANA).
| Year | Time zone Abbreviation | UTC Offset | Time zone Name | Daylight Saving Time | Begins (local time) |
|---|---|---|---|---|---|
| 1975 | GMT | UTC+00 | Greenwich Mean Time | no | Wednesday, January 1 1975, 12:00 AM |
| 1912 | WAT | UTC-01 | no | Monday, January 1 1912, 12:00 AM | |
| 1901 | LMT | UTC-01:02:20 | no | Friday, December 13 1901, 07:43 PM |