Atlantic/Cape_Verde time zone
11:54AMUTC−1
UTC−1UTC−1+4 h vs New York (you)
No transitions: Atlantic/Cape_Verde stays on UTC−1.
About Atlantic/Cape_Verde
Atlantic/Cape_Verde is the IANA time zone for Cabo Verde. It currently keeps UTC−1 all year.
Its principal location is Cape Verde at 14.92° N, 23.52° W.
Rule for future years (POSIX TZ string)
<-01>1
The standard time is called “-01” (a numeric abbreviation) and is UTC−1. POSIX writes the offset with the opposite sign (west of Greenwich is positive), which is why the string says "1". There is no daylight saving rule: the zone stays on this offset for every year after the end of its explicit transitions. Software that has no full tzdata copy, such as many embedded devices, can use this string directly as the TZ environment variable.
History of Atlantic/Cape_Verde since 1970
The record starts with local mean time (UTC−1:34), which ended on January 1, 1912. The first daylight saving time in the record is in 1942.
| Years | Clocks | Abbreviations |
|---|---|---|
| 1970–1974 | UTC−2 all year | — |
| 1975 | UTC−2 until November 25, then UTC−1 | — |
| 1976 onward | UTC−1 all year | — |
Before 1970
3 offset changes before 1970 in the record:
- Monday, January 1, 1912: UTC−1:34 → UTC−2
- Tuesday, September 1, 1942: UTC−2 → UTC−1, daylight saving time
- Monday, October 15, 1945: UTC−1 → UTC−2
Changes of the winter (standard) offset: Tuesday, November 25, 1975, UTC−2 → UTC−1.
tzdata commits to accuracy from 1970 for every zone (zone1970.tab); earlier entries are historical research and may be incomplete.
Places on Atlantic/Cape_Verde
- PraiaCV
Convert Cape Verde time
Using Atlantic/Cape_Verde in code
Every major platform reads the same IANA ID. Store instants in UTC and convert with the ID at display time; never store a fixed offset for a place that has daylight saving time.
// JavaScript
new Date().toLocaleString('en-US', { timeZone: 'Atlantic/Cape_Verde' })
# Python 3.9+
from zoneinfo import ZoneInfo
from datetime import datetime
datetime.now(ZoneInfo('Atlantic/Cape_Verde'))
// Java
java.time.ZonedDateTime.now(java.time.ZoneId.of("Atlantic/Cape_Verde"))
// Go
loc, _ := time.LoadLocation("Atlantic/Cape_Verde")
time.Now().In(loc)
-- PostgreSQL
SELECT now() AT TIME ZONE 'Atlantic/Cape_Verde';
# Shell
TZ='Atlantic/Cape_Verde' datePlatforms ship their own copy of tzdata and update it on their own schedule. After a rule change, outputs can differ until the platform updates; this page uses tzdata 2026f.