Time zone history in Atlantic islands
8 zones of the tz database have their reference point in Atlantic islands. They use 5 different standard times today; the most common is UTC+0, kept by 3 zones. 5 still change their clocks during the year. 1 used daylight saving time at some point since 1970 and no longer do, most recently in 2010. The record with the most changes of standard time since 1970 is Stanley, with 3 times.
Standard times in use
Every zone, with its clock changes since 1970
The strip shows 1970 to 2028; amber marks years with seasonal clock changes.
| Zone | Standard time | Clock changes today | New standard times since 1970 | 1970 to 2028 |
|---|---|---|---|---|
| Canary Islands, Spain | UTC+0 | yes | 0 | |
| Faroe Islands | UTC+0 | yes | 0 | |
| Madeira, Portugal | UTC+0 | yes | 0 | |
| Azores, Portugal | UTC−1 | yes | 2 | |
| Cape Verde | UTC−1 | no | 1 | |
| South Georgia and the South Sandwich Islands | UTC−2 | no | 0 | |
| Falkland Islands | UTC−3 | no (last 2010) | 3 | |
| Bermuda | UTC−4 | yes | 0 |