Atlantic/Stanley time zone
9:53AMUTC−3
UTC−3UTC−3+2 h vs New York (you)
No transitions: Atlantic/Stanley stays on UTC−3.
About Atlantic/Stanley
Atlantic/Stanley is the IANA time zone for Falkland Islands. It currently keeps UTC−3 all year.
Its principal location is Stanley at 51.70° S, 57.85° W.
Rule for future years (POSIX TZ string)
<-03>3
The standard time is called “-03” (a numeric abbreviation) and is UTC−3. POSIX writes the offset with the opposite sign (west of Greenwich is positive), which is why the string says "3". 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/Stanley since 1970
The record starts with local mean time (UTC−3:51), which ended on January 1, 1890. The first daylight saving time in the record is in 1937.
| Years | Clocks | Abbreviations |
|---|---|---|
| 1970–1982 | UTC−4 all year | — |
| 1983 | UTC−3 in winter, UTC−4 in summer; also UTC−2 for part of the year | — |
| 1984 | UTC−3 in winter, UTC−2 in summer | — |
| 1985 | UTC−2 until April 28, then UTC−3 | — |
| 1986–2010 | UTC−4 in winter, UTC−3 in summer | — |
| 2011 onward | UTC−3 all year | — |
Before 1970
13 offset changes before 1970 in the record:
- Tuesday, March 12, 1912: UTC−3:51 → UTC−4
- Sunday, September 26, 1937: UTC−4 → UTC−3, daylight saving time
- Sunday, March 20, 1938: UTC−3 → UTC−4
- Sunday, September 25, 1938: UTC−4 → UTC−3, daylight saving time
- Sunday, March 19, 1939: UTC−3 → UTC−4
- Sunday, October 1, 1939: UTC−4 → UTC−3, daylight saving time
- Sunday, March 24, 1940: UTC−3 → UTC−4
- Sunday, September 29, 1940: UTC−4 → UTC−3, daylight saving time
- Sunday, March 23, 1941: UTC−3 → UTC−4
- Sunday, September 28, 1941: UTC−4 → UTC−3, daylight saving time
- Sunday, March 22, 1942: UTC−3 → UTC−4
- Sunday, September 27, 1942: UTC−4 → UTC−3, daylight saving time
- Friday, January 1, 1943: UTC−3 → UTC−4
Changes of the winter (standard) offset: Sunday, May 1, 1983, UTC−4 → UTC−3; Sunday, April 20, 1986, UTC−3 → UTC−4; Sunday, September 5, 2010, UTC−4 → UTC−3.
tzdata commits to accuracy from 1970 for every zone (zone1970.tab); earlier entries are historical research and may be incomplete.
Aliases and zones with the same clock
Other zones that keep exactly the same time under the current rules (but have a different history): America/Araguaina, America/Argentina/Buenos_Aires, America/Argentina/Catamarca, America/Argentina/Cordoba, America/Argentina/Jujuy, America/Argentina/La_Rioja, America/Argentina/Mendoza, America/Argentina/Rio_Gallegos, America/Argentina/Salta, America/Argentina/San_Juan, America/Argentina/San_Luis, America/Argentina/Tucuman.
Places on Atlantic/Stanley
- StanleyFK
Convert Stanley time
Using Atlantic/Stanley 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/Stanley' })
# Python 3.9+
from zoneinfo import ZoneInfo
from datetime import datetime
datetime.now(ZoneInfo('Atlantic/Stanley'))
// Java
java.time.ZonedDateTime.now(java.time.ZoneId.of("Atlantic/Stanley"))
// Go
loc, _ := time.LoadLocation("Atlantic/Stanley")
time.Now().In(loc)
-- PostgreSQL
SELECT now() AT TIME ZONE 'Atlantic/Stanley';
# Shell
TZ='Atlantic/Stanley' 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.