Time difference between Toronto and Buenos Aires
Buenos Aires is 1 hour ahead of Toronto. When it's 9:00 in Toronto, it's 10:00 in Buenos Aires.
Buenos Aires is 1 hour ahead of Toronto.
On Tuesday, 6 October 2026, 09:00 in Toronto is 10:00 in Buenos Aires. Toronto is UTC−4; Buenos Aires is UTC−3.
The gap through 2026
- 1 Jan – 8 MarBuenos Aires is 2 hours ahead of Toronto.
- 8 Mar – 1 NovBuenos Aires is 1 hour ahead of Toronto.
- 1 Nov – 31 DecBuenos Aires is 2 hours ahead of Toronto.
- Toronto moves its clocks forward on 8 March (UTC−5 → UTC−4).
- Toronto moves its clocks back on 1 November (UTC−4 → UTC−5).
Toronto to Buenos Aires, hour by hour
On Tuesday 6 October.
| Toronto | Buenos Aires |
|---|---|
| 07:00 Early morning | 08:00 Early morning |
| 08:00 Early morning | 09:00 Working hours |
| 09:00 Working hours | 10:00 Working hours |
| 10:00 Working hours | 11:00 Working hours |
| 11:00 Working hours | 12:00 Working hours |
| 12:00 Working hours | 13:00 Working hours |
| 13:00 Working hours | 14:00 Working hours |
| 14:00 Working hours | 15:00 Working hours |
| 15:00 Working hours | 16:00 Working hours |
| 16:00 Working hours | 17:00 Evening |
| 17:00 Evening | 18:00 Evening |
| 18:00 Evening | 19:00 Evening |
| 19:00 Evening | 20:00 Evening |
| 20:00 Evening | 21:00 Evening |
| 21:00 Evening | 22:00 Sleeping hours |
| 22:00 Sleeping hours | 23:00 Sleeping hours |
Daylight saving in 2026
- Toronto moves its clocks forward on Sunday 8 March (UTC−5 → UTC−4).
- Toronto moves its clocks back on Sunday 1 November (UTC−4 → UTC−5).
- 1 Jan – 8 MarBuenos Aires is 2 hours ahead of Toronto.
- 8 Mar – 1 NovBuenos Aires is 1 hour ahead of Toronto.
- 1 Nov – 31 DecBuenos Aires is 2 hours ahead of Toronto.
Best times for a call
Working hours (09:00–17:00) overlap for 7 hours: 09:00–16:00 in Toronto, which is 10:00–17:00 in Buenos Aires.
- Toronto 09:00Working hoursBuenos Aires 10:00Working hours
- Toronto 10:00Working hoursBuenos Aires 11:00Working hours
- Toronto 11:00Working hoursBuenos Aires 12:00Working hours
More time differences for Toronto and Buenos Aires
- New York and Toronto
- Los Angeles and Toronto
- Chicago and Toronto
- Toronto and London
- Toronto and Paris
- Toronto and Berlin
- Toronto and Dubai
- Toronto and Karachi
- Toronto and Mumbai
- Toronto and Singapore
- Toronto and Tokyo
- Toronto and Sydney
- New York and Buenos Aires
- Los Angeles and Buenos Aires
- Chicago and Buenos Aires
- Denver and Toronto
- Denver and Buenos Aires
- Toronto and Vancouver
- Toronto and Mexico City
- Toronto and São Paulo
- Toronto and Bogotá
- Toronto and Dublin
- Toronto and Lisbon
- Toronto and Madrid
- Toronto and Amsterdam
- Toronto and Brussels
- Toronto and Zurich
- Toronto and Rome
- Toronto and Stockholm
- Toronto and Warsaw
- Toronto and Athens
- Toronto and Moscow
How the time difference calculator works
The difference is each city's offset from UTC on the date you pick, subtracted. Offsets come from the IANA time zone database in your browser.
Because countries change their clocks on different dates — or not at all — the gap between two cities can change for a few weeks a year. The calculator lists every change in the year.
Examples
- London is 5 hours ahead of New York for most of the year, but only 4 hours ahead for about three weeks in March and one week in late October.
- Dubai doesn't change its clocks, so its gap to London is 4 hours in winter and 3 hours in summer.
Good for
- Knowing when a colleague's day starts
- Setting expectations for replies across time zones
- Planning travel and jet lag
Frequently asked questions
- What time is it in Buenos Aires when it's 9 AM in Toronto?
- 10:00 AM — as of 6 October 2026. Buenos Aires is 1 hour ahead of Toronto.
- Does the time difference between Toronto and Buenos Aires change?
- Yes. In 2026 it's 2 hours or 1 hour, depending on the date, because only Toronto changes its clocks.
- What's the best time for a call between Toronto and Buenos Aires?
- Between 09:00 and 16:00 Toronto time, when both cities are in working hours (09:00–17:00).
- What time zones are Toronto and Buenos Aires in?
- Toronto uses America/Toronto (UTC−4 today); Buenos Aires uses America/Argentina/Buenos_Aires (UTC−3 today).
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