Time in Buenos Aires, Argentina 🇦🇷
The current local time in Buenos Aires, Argentina is shown below — the city is in the America/Argentina/Buenos_Aires time zone (UTC -03:00).
Buenos Aires local time
Thursday, 22 October 2026 GMT-3
Buenos Aires at a glance
- Time zone
America/Argentina/Buenos_Aires· Argentina Time- UTC offset now
- -03:00 GMT-3
- Daylight saving
- No · UTC -03:00 all year
- Coordinates
- 34.60° S, 58.38° W
- Population
- 3,075,646
- Country
- Argentina · ISO AR
- Dialing code
- +54
- Currency
- Argentine Peso (ARS)
- Work week
- Monday to Friday
- Drives on the
- Right
Buenos Aires right now
Time difference
Buenos Aires is shown here relative to your device's time zone.
Planning a call? Compare hours side by side in the time zone converter.
Upcoming public holidays
- Day of National Sovereignty Mon, Nov 23, 2026
- Immaculate Conception Tue, Dec 8, 2026
- Christmas Day Fri, Dec 25, 2026
- New Year's Day Fri, Jan 1, 2027
Sun today
Sunrise 06:04 · Sunset 19:14
Day length 13h 10m · twilight and monthly table →
Buenos Aires time vs. UTC
A 09:00–17:00 working day in Buenos Aires overlaps with 09:00–17:00 UTC from 09:00 to 14:00 Buenos Aires time. Open this page in your browser and the second row switches to your own time zone.
| Buenos Aires | 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UTC | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 | 00:00 | 01:00 | 02:00 |
- Office hours 09–17
- Awake, off work
- Night 22–07
Buenos Aires vs. major cities
How far Buenos Aires is from the world's main business centres right now, what time it is there when the working day starts in Buenos Aires, and which hours of a 09:00–17:00 day the two places share. Daylight saving changes are applied automatically.
| City | Difference | At 09:00 in Buenos Aires | Shared office hours |
|---|---|---|---|
| New York · United States | −1 h | 08:00 | 10:00–17:00 |
| Los Angeles · United States | −4 h | 05:00 | 13:00–17:00 |
| São Paulo · Brazil | Same time | 09:00 | 09:00–17:00 |
| London · United Kingdom | +4 h | 13:00 | 09:00–13:00 |
| Paris · France | +5 h | 14:00 | 09:00–12:00 |
| Johannesburg · South Africa | +5 h | 14:00 | 09:00–12:00 |
| Dubai · United Arab Emirates | +7 h | 16:00 | 09:00–10:00 |
| Delhi · India | +8:30 h | 17:30 | None |
| Singapore · Singapore | +11 h | 20:00 | None |
| Beijing · China | +11 h | 20:00 | None |
Shared office hours are shown in Buenos Aires time. Compare any set of cities hour by hour in the time zone converter, or pick a slot that suits everyone with the event planner.
Cities near Buenos Aires
The closest places to Buenos Aires among the cities we track, measured in a straight line from the city centre. Some of them keep a different clock, so check the time difference before crossing a border or booking a call.
| City | Distance | Time difference |
|---|---|---|
| Montevideo · Uruguay | 210 km (130 mi) east | Same time |
| Córdoba | 650 km (400 mi) northwest | Same time |
| Santiago · Chile | 1,140 km (710 mi) west | Same time / −1 h |
| São Paulo · Brazil | 1,670 km (1,040 mi) northeast | Same time |
| Rio de Janeiro · Brazil | 1,970 km (1,220 mi) northeast | Same time |
| Brasília · Brazil | 2,330 km (1,450 mi) northeast | Same time |
| Salvador · Brazil | 3,130 km (1,940 mi) northeast | Same time |
| Lima · Peru | 3,140 km (1,950 mi) northwest | −2 h |
Distances are great-circle distances. A plus sign means the other city is ahead of Buenos Aires.
Clock time vs. sun time in Buenos Aires
Buenos Aires's standard offset, UTC -03:00, is based on the 45° W meridian; the city itself lies at 58.38° W, 13.4° west of it. In standard time its clocks run about 54 min ahead of the sun. Solar noon — when the sun is highest — falls between 12:38 (around 29 October) and 13:09 (around 12 February) on the clock. Mornings stay dark later and evenings stay light longer than the clock suggests.
How dates and times are written in Buenos Aires
- Short date
- 22/10/2026 · DD/MM/YYYY
- Long date
- 22 de octubre de 2026
- Time
- 3:30 p. m. · 12-hour clock
- Week starts on
- Monday
Examples show 22 October 2026 at 15:30 using the Unicode CLDR conventions for es-AR, Argentina's most common locale. Businesses and English-language sources may use other formats.
Clock changes in Buenos Aires
Since 1970, Buenos Aires has gone through 9 distinct time-keeping periods, observing daylight saving time in 6 of 57 years. Since 2009 it has stayed on UTC -03:00 all year.
No clock changes are scheduled in 2026 or 2027: Buenos Aires stays on UTC -03:00 all year.
Time zone history since 1970 (9 periods)
| Years | Offset | Daylight saving |
|---|---|---|
| 1970–1973 | UTC -03:00 all year | No daylight saving time |
| 1974 | UTC -03:00, DST UTC -02:00 | Forward on the fourth Wednesday in January, back on the first Wednesday in May |
| 1975–1987 | UTC -03:00 all year | No daylight saving time |
| 1988 | UTC -02:00 all year | No daylight saving time |
| 1989–1992 | UTC -03:00, DST UTC -02:00 | Forward on the third Sunday in October, back on the first Sunday in March |
| 1993–2006 | UTC -03:00 all year | No daylight saving time |
| 2007 | UTC -02:00 all year | No daylight saving time |
| 2008 | UTC -03:00, DST UTC -02:00 | Forward on the third Sunday in October, back on the third Sunday in March |
| 2009–2026 | UTC -03:00 all year | No daylight saving time |
Source: IANA tz database, as shipped with the Unicode ICU library.
Daylight in Buenos Aires through the year
The longest day in Buenos Aires is 22 December with 14h 29m of daylight; the shortest is 21 June with 9h 50m. Day length swings by 4 h 39 min over the year, with the long days falling in the southern summer (December–January). The earliest sunrise is at 05:35 on 29 November and the latest sunset at 20:11 on 2 January — not on the solstice itself, because solar noon drifts through the year.
Frequently asked questions
What time zone is Buenos Aires in?
Buenos Aires uses the America/Argentina/Buenos_Aires time zone: UTC -03:00 all year round. Argentina spans more than one time zone, so other cities in the country may show a different time.
Does Buenos Aires observe daylight saving time?
No. Buenos Aires does not currently change its clocks; it last observed daylight saving time in 2008.
When is the longest day of the year in Buenos Aires?
Around 22 December, with 14h 29m of daylight. The shortest day is around 21 June, with 9h 50m.
What is the dialing code for Buenos Aires?
To call Buenos Aires from abroad, dial your international access code, then Argentina's country code +54, then the local number without its leading trunk prefix.
What are normal working days in Buenos Aires?
The standard work week in Argentina runs Monday to Friday, with the weekend on Saturday and Sunday. Keep this in mind when scheduling calls from countries with a different weekend.
Why is sunset so late in Buenos Aires?
Buenos Aires lies at 58.38° W, 13.4° west of the 45° W meridian its UTC -03:00 offset is based on, so its clocks run about 54 min ahead of the sun. Solar noon falls between 12:38 and 13:09 through the year instead of around 12:00, and the latest sunset is at 20:11 on 2 January.
What is the nearest city to Buenos Aires on a different time?
Of the 189 cities we track, the closest one keeping a different clock is Santiago, Chile, about 1,140 km (710 mi) to the west. It is the same time as Buenos Aires in January and 1 h behind it in July.
How are dates and times written in Buenos Aires?
Following the es-AR conventions in the Unicode CLDR, a short date is written DD/MM/YYYY (22/10/2026) and times usually use the 12-hour clock (3:30 p. m.). Calendars start the week on Monday.
Explore more for Buenos Aires
Everything else we track for Buenos Aires: daylight, weather, the country overview, and the exact time-zone references.