When it is 09:00 in Buenos Aires it is 13:00 in Rome in January and 14:00 in July. Rome is 4 hours ahead Buenos Aires right now — but it is not constant: the difference is 4 hours ahead in January and 5 hours ahead in July. This page gives the live times in both cities, the overlap between their working days, the daylight saving dates that move the difference, and the best meeting windows.
Try the tool: Time Zone Converter — convert any time between Buenos Aires and Rome, with the offset for the date you pick.
Live times in Buenos Aires and Rome
The two cities side by side. The January column uses the winter offsets (Buenos Aires UTC−03:00, Rome UTC+01:00); the July column uses the summer offsets (Buenos Aires UTC−03:00, Rome UTC+02:00).
| Time in Buenos Aires | Rome in January | Rome in July |
|---|---|---|
| 00:00 | 04:00 | 05:00 |
| 06:00 | 10:00 | 11:00 |
| 09:00 | 13:00 | 14:00 |
| 12:00 | 16:00 | 17:00 |
| 15:00 | 19:00 | 20:00 |
| 17:00 | 21:00 | 22:00 |
| 21:00 | 01:00 | 02:00 |
The world clock shows the current time in both cities live, and the individual city pages — time in Buenos Aires and time in Rome — explain each city's time zone, offsets and daylight saving in full.
The time difference between Buenos Aires and Rome
The difference is not constant. In January Rome is 4 hours ahead Buenos Aires; in July it is 5 hours ahead Buenos Aires. The difference changes on Sunday, 29 March 2026 (from 4 hours ahead to 5 hours ahead) and Sunday, 25 October 2026 (from 5 hours ahead to 4 hours ahead) — those are the dates when one of the two cities changes its clocks and the other does not, or when they change on different days. Between those dates the difference is one value; outside them it is the other.
To convert a time, add the difference: 09:00 in Buenos Aires is 13:00 in Rome in January and 14:00 in July; 17:00 in Buenos Aires — the end of the working day — is 21:00 in Rome in January and 22:00 in July. To go the other way, subtract it: 09:00 in Rome is 05:00 in Buenos Aires in January. The time difference calculator does the arithmetic for any date, and the UTC to Rome page gives the full conversion table for Rome.
Meeting overlap between Buenos Aires and Rome
The overlap is the hours when both cities are in their working day (09:00–17:00 local time). The table marks the overlapping hours in Buenos Aires's working day and shows what time they are in Rome.
January
| Buenos Aires time | Rome time | Both working? |
|---|---|---|
| 09:00 | 13:00 | Yes |
| 10:00 | 14:00 | Yes |
| 11:00 | 15:00 | Yes |
| 12:00 | 16:00 | Yes |
| 13:00 | 17:00 | Yes |
| 14:00 | 18:00 | Yes |
| 15:00 | 19:00 | Yes |
| 16:00 | 20:00 | Yes |
July
| Buenos Aires time | Rome time | Both working? |
|---|---|---|
| 09:00 | 14:00 | No |
| 10:00 | 15:00 | No |
| 11:00 | 16:00 | No |
| 12:00 | 17:00 | No |
| 13:00 | 18:00 | No |
| 14:00 | 19:00 | No |
| 15:00 | 20:00 | No |
| 16:00 | 21:00 | No |
In January the overlap is 8 hours: 09:00, 10:00, 11:00, 12:00, 13:00, 14:00, 15:00, 16:00 Buenos Aires time. In July it is 0 hours: there is no hour when both cities are in their working day. The meeting planner finds the overlap for any two cities and any date, and the meeting time finder finds it for a whole team.
Daylight saving in Buenos Aires and Rome
Buenos Aires does not observe daylight saving, so its offset of UTC−03:00 never changes.
Rome observes daylight saving: in 2026 the clocks go forward on 29 March 2026 and back on 25 October 2026, moving the offset from UTC+01:00 to UTC+02:00.
The difference changes on Sunday, 29 March 2026 and Sunday, 25 October 2026 in 2026. On those dates, one city changes its clocks and the other does not — or they change on different days — so the difference moves by an hour. A standing meeting set in one city's local time will land an hour early or late on the other side until the second city catches up. The fix is to set the calendar event in UTC, or to check the overlap again after each change. The individual DST pages — Buenos Aires DST 2026 and Rome DST 2026 — give the exact dates for each city.
Best meeting windows
The best windows in January are 09:00–17:00 in Buenos Aires (13:00–21:00 in Rome). These are the hours inside both working days, so nobody is up early or late. It is a short window, so keep the meeting short and send an agenda in advance.
Calling and travel notes
When it is 09:00 in Buenos Aires it is 13:00 in Rome in January; when it is 12:00 in Buenos Aires it is 16:00 in Rome; when it is 17:00 in Buenos Aires it is 21:00 in Rome. The difference is under 12 hours, so the two cities are usually on the same date — but check the date for late-evening and early-morning times, when the date can differ by a day. Scheduling between the Americas and Europe is the easiest intercontinental case: the difference is 5–9 hours, so the working days overlap for several hours. The best window is late morning in Buenos Aires and afternoon in Rome (or the reverse), when both sides are in their working day. Watch the three weeks in March when the United States has changed its clocks and Europe has not — the overlap shifts by an hour, and standing meetings land at the wrong time.
Worked conversions
Six conversions, for January (offsets Buenos Aires UTC−03:00, Rome UTC+01:00):
| Buenos Aires | Rome |
|---|---|
| 08:00 | 12:00 |
| 09:00 | 13:00 |
| 12:00 | 16:00 |
| 14:00 | 18:00 |
| 17:00 | 21:00 |
| 20:00 | 00:00 |
In July, add 1 hour to each Rome time. For the reverse direction, see Rome to Buenos Aires time.
Buenos Aires and Rome at a glance
| Fact | Buenos Aires | Rome |
|---|---|---|
| Country | Argentina | Italy |
| Region | Americas | Europe |
| IANA time zone | America/Argentina/Buenos_Aires |
Europe/Rome |
| Standard offset | UTC−03:00 | UTC+01:00 |
| Daylight saving offset | — does not observe | UTC+02:00 |
| Offset in January 2026 | UTC−03:00 | UTC+01:00 |
| Offset in July 2026 | UTC−03:00 | UTC+02:00 |
| Observes daylight saving | No | Yes |
The table is the whole pair in one place. The two numbers that matter most are the January and July offsets: if they are the same in both columns for a city, that city's offset never changes; if they differ, the city observes daylight saving and the difference between the cities moves with it. The individual city pages — time in Buenos Aires and time in Rome — explain each city's time zone, and the DST pages — Buenos Aires DST 2026 and Rome DST 2026 — give the exact change dates.
Frequently asked questions
What is the time difference between Buenos Aires and Rome?
Rome is 4 hours ahead Buenos Aires right now. In January the difference is 4 hours ahead and in July it is 5 hours ahead — it changes with daylight saving.
How do I schedule a recurring meeting between Buenos Aires and Rome?
Pick a time inside the overlap — 09:00–17:00 Buenos Aires time — and set the calendar event in UTC so it moves correctly when the clocks change. Re-check the overlap in March and October, when the difference moves, and rotate the time if the meeting falls outside someone's working day.
What time is it in Rome when it is 09:00 in Buenos Aires?
It is 13:00 in January and 14:00 in July. The time zone converter gives the answer for any date.
What is the best time for a meeting between Buenos Aires and Rome?
The best windows in January are 09:00–17:00 Buenos Aires time — inside both working days.
Does the time difference between Buenos Aires and Rome change during the year?
Yes. It changes on Sunday, 29 March 2026 and Sunday, 25 October 2026 in 2026, when one city changes its clocks and the other does not.
What time is it in Buenos Aires when it is 09:00 in Rome?
It is 05:00 in January and 04:00 in July. See Rome to Buenos Aires time for the full comparison from Rome's side.
What are the time zones of Buenos Aires and Rome?
Buenos Aires is in America/Argentina/Buenos_Aires (UTC−03:00 standard time) and Rome is in Europe/Rome (UTC+01:00 standard time).
What time is it in Buenos Aires when it is midnight in Rome?
It is 20:00 in Buenos Aires in January and 19:00 in July — the same day, because Buenos Aires is ahead of Rome. Midnight conversions are the ones that most often land on the wrong date, so always check the date as well as the time.
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 time zone converter and meeting planner — 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.