Time in Buenos Aires Now — Current Local Time. Buenos Aires is on UTC−03:00 right now — Buenos Aires stays on UTC−03:00 all year — it does not observe daylight saving, so its offset from UTC never changes. The current local time, date and daylight saving status are shown live by the world clock, which is worked out from the IANA time zone database (America/Argentina/Buenos_Aires), not from a printed table.
Try the tool: World Clock — see the current time in Buenos Aires and 99 other cities, side by side, with each city's UTC offset.
What time is it in Buenos Aires now?
The world clock shows the current time in Buenos Aires live — the time, the date and the day of the week — updated every second from your device's clock and the IANA time zone database. It is the time in the America/Argentina/Buenos_Aires zone, which covers Buenos Aires and the surrounding region. The clock does not use a fixed offset: it asks the database what the offset is on today's date, so it is right whether daylight saving is in effect or not. That matters more than it sounds, because Buenos Aires's offset never changes, which is one reason the time in Buenos Aires is easy to remember.
If you need the time in Buenos Aires for a meeting or a flight, use the live clock rather than a remembered offset. The remembered offset is right most of the year and wrong for a few weeks — the weeks when Buenos Aires is on the same time it is always on, while the place you are calling from has just changed its clocks. The time zone converter handles the date as well as the cities, so it is right on the awkward dates too.
Buenos Aires's UTC offset
Buenos Aires stays on UTC−03:00 all year — it does not observe daylight saving, so its offset from UTC never changes.
| Period | Offset | In effect |
|---|---|---|
| All year | UTC−03:00 | The offset never changes |
| Right now (11 November 2026) | UTC−03:00 | The offset never changes |
The offset is the whole story for conversions. To get the time in Buenos Aires from UTC, add the offset: when it is 12:00 UTC, it is 09:00 in Buenos Aires in January and 09:00 in July. To go the other way, subtract it. The UTC converter does the arithmetic for any hour, and the UTC to Buenos Aires page has the full 24-hour conversion table for this city.
Daylight saving in Buenos Aires
Buenos Aires does not observe daylight saving time, and its offset never changes. Argentina has not observed daylight saving since 2009. Earlier experiments in 2008–2009 were unpopular and were not repeated. That makes Buenos Aires one of the easiest cities in the world to schedule with: the time difference between Buenos Aires and anywhere else only changes when the other place changes its clocks. The Buenos Aires DST 2026 page explains the history, and the daylight saving checker confirms the status for any zone.
Buenos Aires working hours in other cities
The table below converts Buenos Aires's working day — 09:00 to 17:00 local time — into the time in four reference points: UTC, New York, London and Tokyo. It is the table to use when you are working out whether someone in Buenos Aires is at their desk.
January (northern winter) — when it is the time in the first column in Buenos Aires, it is the time shown in each other city.
| Time in Buenos Aires | UTC | New York | London | Tokyo |
|---|---|---|---|---|
| 09:00 | 12:00 | 07:00 | 12:00 | 21:00 |
| 12:00 | 15:00 | 10:00 | 15:00 | 00:00 |
| 15:00 | 18:00 | 13:00 | 18:00 | 03:00 |
| 17:00 | 20:00 | 15:00 | 20:00 | 05:00 |
July (northern summer) — when it is the time in the first column in Buenos Aires, it is the time shown in each other city.
| Time in Buenos Aires | UTC | New York | London | Tokyo |
|---|---|---|---|---|
| 09:00 | 12:00 | 08:00 | 13:00 | 21:00 |
| 12:00 | 15:00 | 11:00 | 16:00 | 00:00 |
| 15:00 | 18:00 | 14:00 | 19:00 | 03:00 |
| 17:00 | 20:00 | 16:00 | 21:00 | 05:00 |
Read the table from left to right: find the time in Buenos Aires, then read across to see what time it is in each other city. If the January and July tables differ, the difference is daylight saving — one or more of the cities has changed its clocks between the two dates. The meeting planner does the same conversion for any two cities and any date, and the meeting time finder finds the hours when everyone is available.
Best time to call Buenos Aires
The best windows to call Buenos Aires — the hours when Buenos Aires is in its working day and New York, London and Tokyo are most likely to be awake — are 07:00–22:00 Buenos Aires time (January, when the offsets are as shown in the table above). These are the hours when at least two of the three hubs are between 07:00 and 22:00 local time, so the call is inside the working day in Buenos Aires and at a reasonable hour for the other side. Outside these windows, the call is either before the working day in Buenos Aires or in the middle of the night somewhere else.
As a rule of thumb, the kindest time to call Buenos Aires from the United States is late morning in New York, which is the afternoon or evening in Buenos Aires for most of the world east of the Atlantic — and the kindest time from Europe is mid-morning in London, which is late morning or afternoon in Buenos Aires for most of Asia. The worst time to call is the hour that is 03:00 somewhere: check the tables above before you dial.
About Buenos Aires and its time zone
Buenos Aires is on Argentina Time, UTC−03:00, all year. Argentina has not observed daylight saving since 2009, and its offset never changes.
Buenos Aires is in the Americas region, and its IANA time zone is America/Argentina/Buenos_Aires. That name is the identifier computers use: when your phone, your calendar or this website works out the time in Buenos Aires, it looks up America/Argentina/Buenos_Aires in the IANA Time Zone Database and applies the rules for that zone on the date you asked about. The rules include the standard offset, the daylight saving dates and the whole history of changes — which is why the answer is right even for dates in the past, when the rules were different.
The practical consequence is that the time in Buenos Aires is not a fixed number. It is a single number, all year, which is the simplest case in time-zone work. The time in Buenos Aires is UTC−03:00 on every day of the year, and the only thing that changes is the time in the place you are calling from. The time zone list shows every zone in the database with its current offset, and the guides explain how the system works.
Buenos Aires compared with the world's major cities
When it is 12:00 in Buenos Aires, it is:
| City | January | July |
|---|---|---|
| New York | 10:00 | 11:00 |
| London | 15:00 | 16:00 |
| Paris | 16:00 | 17:00 |
| Dubai | 19:00 | 19:00 |
| Mumbai | 20:30 | 20:30 |
| Singapore | 23:00 | 23:00 |
| Tokyo | 00:00 | 00:00 |
| Sydney | 02:00 | 01:00 |
The January and July columns differ wherever one of the cities observes daylight saving and the other does not, or where they change their clocks on different dates. For the full comparison with the cities people ask about most, see New York to Buenos Aires time, Buenos Aires to New York time, London to Buenos Aires time.
How to convert Buenos Aires time
Three worked examples, all for January, when Buenos Aires is on UTC−03:00: 09:00 in Buenos Aires is 12:00 UTC, 12:00 in London and 07:00 in New York. 12:00 in Buenos Aires is 15:00 UTC and 00:00 in Tokyo. 17:00 in Buenos Aires — the end of the working day — is 20:00 UTC and 15:00 in New York. In July, when Buenos Aires is on UTC−03:00, add or subtract the difference between the two offsets — there is none, because the offset does not change — from each of those answers.
Frequently asked questions
What time is it in Buenos Aires right now?
The world clock shows the current time in Buenos Aires live, with the date and the day of the week. It is worked out from the IANA time zone database (America/Argentina/Buenos_Aires), so it is right whether daylight saving is in effect or not.
What is Buenos Aires's UTC offset?
Buenos Aires is on UTC−03:00 in standard time, all year. Right now (11 November 2026) it is on UTC−03:00.
Does Buenos Aires observe daylight saving time?
No. Buenos Aires does not observe daylight saving, so its offset of UTC−03:00 never changes. See the Buenos Aires DST 2026 page for the full explanation.
What is the time difference between Buenos Aires and London?
In January, Buenos Aires is 3 hours behind London; in July it is 4 hours behind London. The difference changes with daylight saving.
What is the time difference between Buenos Aires and New York?
In January, Buenos Aires is 2 hours ahead New York; in July it is 1 hour ahead New York. See New York to Buenos Aires time for the full comparison.
What time zone is Buenos Aires in?
Buenos Aires is in the IANA time zone America/Argentina/Buenos_Aires, in Argentina. The zone's standard offset is UTC−03:00, and it does not observe daylight saving.
Sources
- IANA Time Zone Database, via Node.js Intl (
Intl.DateTimeFormatwithtimeZone) — offsets, daylight saving dates and local times in this article were worked out from the IANA database, not typed from memory. - TimeFlow's own time-zone data (
data/cities.ts,data/dst.ts), computed from the IANA database. - TimeFlow's world clock and time zone converter — the live tools behind the numbers on this page.
- Time-zone and daylight saving rules are set by governments and can change. For flights, deadlines and meetings that cannot move, confirm the time with an official source.