Currently on UTC−3. No clock changes are scheduled in the time zone database.
Time zone in Buenos Aires
| Country | Argentina |
|---|---|
| IANA time zone | America/Argentina/Buenos_Aires |
| All year | UTC−3, no daylight saving time |
| Also written as | ART |
| Same clock as | São Paulo, Rio de Janeiro |
What to know about time in Buenos Aires
Argentina uses UTC−3 all year and has not used daylight saving time since 2009.
Clock changes in Buenos Aires in 2026 and 2027
Buenos Aires does not change its clocks in 2026 or 2027. The offset stays at UTC−3 all year.
Time difference between Buenos Aires and other cities
The table shows how far each city is ahead of or behind Buenos Aires, and how that changes when either place changes its clocks between now and the end of 2027.
| City | Now | Through 2026 and 2027 |
|---|---|---|
| London | 4 hours ahead | 4 hours ahead until 25 Oct 2026; 3 hours ahead 25 Oct 2026 to 28 Mar 2027; 4 hours ahead 28 Mar 2027 to 31 Oct 2027; 3 hours ahead from 31 Oct 2027 |
| New York | 1 hour behind | 1 hour behind until 1 Nov 2026; 2 hours behind 1 Nov 2026 to 14 Mar 2027; 1 hour behind 14 Mar 2027 to 7 Nov 2027; 2 hours behind from 7 Nov 2027 |
| Los Angeles | 4 hours behind | 4 hours behind until 1 Nov 2026; 5 hours behind 1 Nov 2026 to 14 Mar 2027; 4 hours behind 14 Mar 2027 to 7 Nov 2027; 5 hours behind from 7 Nov 2027 |
| Dubai | 7 hours ahead | 7 hours ahead all year (no difference in clock changes) |
| Mumbai | 8½ hours ahead | 8½ hours ahead all year (no difference in clock changes) |
| Singapore | 11 hours ahead | 11 hours ahead all year (no difference in clock changes) |
| Tokyo | 12 hours ahead | 12 hours ahead all year (no difference in clock changes) |
| Sydney | 14 hours ahead | 14 hours ahead until 4 Apr 2027; 13 hours ahead 4 Apr 2027 to 3 Oct 2027; 14 hours ahead from 3 Oct 2027 |
Working hours overlap
How much of a 09:00–17:00 working day in Buenos Aires overlaps with the same hours elsewhere, using a mid-week day in January and July 2027:
- London: in January, 5 hours: 09:00–14:00 in Buenos Aires is 12:00–17:00 in London; in July, 4 hours: 09:00–13:00 in Buenos Aires is 13:00–17:00 in London.
- New York: in January, 6 hours: 11:00–17:00 in Buenos Aires is 09:00–15:00 in New York; in July, 7 hours: 10:00–17:00 in Buenos Aires is 09:00–16:00 in New York.
Plan around Buenos Aires time
- Convert a time in Buenos Aires to another city, on any date
- Find a meeting time that works for Buenos Aires and up to four other places
- All time zones in Argentina