Current time in Buenos Aires
Buenos Aires, Argentina, keeps Argentina Standard Time at UTC-03:00 all year, with no clock changes.
Current time in Buenos Aires
12:22:08
America/Argentina/Buenos_Aires · UTC-03:00
Time zone in Buenos Aires
Sunrise and sunset in Buenos Aires
Sun and clock in Buenos Aires
Averaged over the year, solar noon in Buenos Aires comes at 12:54, because the city lies about 13° west of the meridian its clock is set to.
Daylight through the year in Buenos Aires
Adelaide (34.9°S) and Cape Town (33.9°S) lie on almost the same parallel as Buenos Aires, so their days stay within 4 minutes of Buenos Aires’s all year; the clock in Adelaide is 12 h 30 min or 13 h 30 min ahead of Buenos Aires, depending on the date, and in Cape Town 5 h ahead of Buenos Aires.
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| November 15 | 05:40 | 19:36 | 13 h 56 m |
| December 15 | 05:35 | 20:02 | 14 h 27 m |
| January 15 | 05:57 | 20:09 | 14 h 13 m |
| February 15 | 06:28 | 19:48 | 13 h 20 m |
| March 15 | 06:53 | 19:12 | 12 h 20 m |
| April 15 | 07:17 | 18:30 | 11 h 14 m |
| May 15 | 07:40 | 18:00 | 10 h 20 m |
| June 15 | 07:59 | 17:49 | 9 h 51 m |
| July 15 | 07:58 | 18:01 | 10 h 3 m |
| August 15 | 07:34 | 18:23 | 10 h 49 m |
| September 15 | 06:53 | 18:45 | 11 h 52 m |
| October 15 | 06:11 | 19:07 | 12 h 56 m |
When the clocks change in Buenos Aires
Buenos Aires has kept UTC-03:00 since March 15, 2009. The last time its clock showed anything else was from October 19, 2008 to March 15, 2009, when it ran at UTC-02:00. That was the last of 29 such spells in the record since 1900. The record opens with Buenos Aires’s own local mean time, UTC-03:53:48, kept until 1894.
Calling Buenos Aires from another time zone
| Place | Buenos Aires’s 09:00–17:00 there | Shared working hours | Over the next 12 months |
|---|---|---|---|
| UTC | 12:00–20:00 | — | — |
| New York | 07:00–15:00 | 6 h, 11:00–17:00 Buenos Aires time | 6 h to 7 h |
| London | 12:00–20:00 | 5 h, 09:00–14:00 Buenos Aires time | 4 h to 5 h |
| Tokyo | 21:00–05:00 | none | none all year |
At 09:00 on Monday, November 9, 2026 in Buenos Aires, every other city in this directory has already reached Monday. By 17:00 on Friday, 41 listed cities, including New Delhi and Shanghai, have already reached Saturday.
Buenos Aires compared with other cities
| City | Local time | Date | UTC offset | Difference from Buenos Aires | Over the next 12 months |
|---|---|---|---|---|---|
| New York | — | — | UTC-05:00 | 2 h behind | 2 h behind / 1 h behind |
| London | — | — | UTC+00:00 | 3 h ahead | 3 h ahead / 4 h ahead |
| Dubai | — | — | UTC+04:00 | 7 h ahead | all year |
| New Delhi | — | — | UTC+05:30 | 8 h 30 min ahead | all year |
| Singapore | — | — | UTC+08:00 | 11 h ahead | all year |
| Tokyo | — | — | UTC+09:00 | 12 h ahead | all year |
| Sydney | — | — | UTC+11:00 | 14 h ahead | 13 h ahead / 14 h ahead |
Nearby cities
| City | Distance | Clock | Solar noon |
|---|---|---|---|
| Santiago | 1,140 km west | 1 h behind / the same | 49 minutes later |
| São Paulo | 1,670 km north-east | same clock | 47 minutes earlier |
| Rio de Janeiro | 1,970 km north-east | same clock | 1 h 1 min earlier |
| Lima | 3,140 km north-west | 2 h behind | 1 h 15 min later |
| Bogotá | 4,670 km north-west | 2 h behind | 1 h 3 min later |
| Caracas | 5,090 km north | 1 h behind | 34 minutes later |
| Panama City | 5,330 km north-west | 2 h behind | 1 h 25 min later |
| Cape Town | 6,870 km south-east | 5 h ahead | 5 h 7 min earlier |
Beyond Buenos Aires’s own identifier, the nearest city in this directory on exactly the same clock is São Paulo, 1,670 km to the north-east, on America/Sao_Paulo.
Time zone rules: IANA tz database release 2026c, applied when this page was generated on 2026-11-02.
Frequently asked questions
What time zone is Buenos Aires in?
Buenos Aires keeps America/Argentina/Buenos_Aires, Argentina Standard Time, at UTC-03:00 all year. The identifier is named after Buenos Aires itself.
Is all of Argentina on the same time as Buenos Aires?
Yes. All 12 tz database entries for Argentina show the same time as Buenos Aires on every date in the next twelve months.
Which other countries keep exactly the same time as Buenos Aires?
Brazil (Araguaina, Bahia, Belem, Fortaleza, Maceio, Recife, Santarem and Sao Paulo), Chile (Coyhaique and Punta Arenas), Falkland Islands, French Guiana, Paraguay, Suriname and Uruguay keep exactly Buenos Aires’s clock, with no clock changes either. Within Argentina, 11 other tz database entries match it too.
What is the time difference between Buenos Aires and Santiago?
The clock in Santiago, Chile, about 1,140 km away and the closest city in this directory on a different clock, is the same as Buenos Aires’s or 1 h behind Buenos Aires, depending on the date.