No DST
1970 - 2030
| No further time changes in 2024 in Tumbum Jansoma |
Daylight Saving Time (DST) Not Observed in Year 2024
Guinea-Bissau currently observes Greenwich Mean Time (GMT) all year.
Daylight Saving Time has not been used since our records start, in 1970.
DST data from before 1970 is not available for Tumbum Jansoma, Guinea-Bissau. However, we have earlier DST history for Bissau, Guinea-Bissau available.