Buenos Aires to London Time Converter

Buenos Aires is 4 hours behind London · Buenos Aires UTC-3 · London UTC+1

🇦🇷 Buenos Aires

🇬🇧 London

Best time to connect

Working hours overlap: 9am–2pm Buenos Aires time. That's the window when both cities are in a typical 9-to-5 workday — ideal for calls and meetings.

Buenos Aires ↔ London time difference explained

Buenos Aires is 4 hours behind London. Buenos Aires, Argentina runs on America/Argentina/Buenos Aires (UTC-3) while London, United Kingdom uses Europe/London (UTC+1). The converter above stays accurate through daylight saving changes because it reads live UTC offsets rather than fixed values. Whether you're coordinating remote work, booking a call, or planning travel between Buenos Aires and London, the working-hours overlap panel shows exactly when both cities are awake and at their desks.

Need more than the time? See the full Buenos Aires and London remote-work guides — cost of living, internet speed and visa options.

More Buenos Aires conversions

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Hour-by-hour: Buenos Aires to London

When it's this time in Buenos Aires, here's the time in London — all 24 hours, in both 24-hour and 12-hour (am/pm) format.

00:00 · 12am04:00 · 4am

01:00 · 1am05:00 · 5am

02:00 · 2am06:00 · 6am

03:00 · 3am07:00 · 7am

04:00 · 4am08:00 · 8am

05:00 · 5am09:00 · 9am

06:00 · 6am10:00 · 10am

07:00 · 7am11:00 · 11am

08:00 · 8am12:00 · 12pm

09:00 · 9am13:00 · 1pm

10:00 · 10am14:00 · 2pm

11:00 · 11am15:00 · 3pm

12:00 · 12pm16:00 · 4pm

13:00 · 1pm17:00 · 5pm

14:00 · 2pm18:00 · 6pm

15:00 · 3pm19:00 · 7pm

16:00 · 4pm20:00 · 8pm

17:00 · 5pm21:00 · 9pm

18:00 · 6pm22:00 · 10pm

19:00 · 7pm23:00 · 11pm

20:00 · 8pm00:00 · 12am (+1d)

21:00 · 9pm01:00 · 1am (+1d)

22:00 · 10pm02:00 · 2am (+1d)

23:00 · 11pm03:00 · 3am (+1d)

Buenos Aires keeps Argentina Time (ART, UTC-3) all year. London keeps British Summer Time (BST, UTC+1) from 29 March to 25 October 2026, and Greenwich Mean Time (GMT, UTC+0) for the rest of the year. On those offsets the time in the United Kingdom is 4 hours ahead of the time in Argentina: 9am in Buenos Aires is 1pm, 12pm in Buenos Aires is 4pm, 2pm in Buenos Aires is 6pm, and 8pm in Buenos Aires is 12am the next day in London.

Frequently asked questions

What is the time difference between Buenos Aires and London?

Buenos Aires is 4 hours behind London. Buenos Aires is UTC-3 and London is UTC+1. The live converter above updates every second and accounts for daylight saving time automatically.

When it's 9am in Buenos Aires, what time is it in London?

When it's 9am in Buenos Aires, it's 13:00 in London (buenos aires is 4 hours behind london).

What's the best time to schedule a call between Buenos Aires and London?

The "best time to connect" panel above shows the live working-hours overlap — the window when both Buenos Aires and London are within a typical 9-to-5 workday, ideal for meetings and calls.

Do Buenos Aires and London observe daylight saving time?

Both cities' current UTC offsets are shown live above and adjust automatically when either region enters or leaves daylight saving time, so the converter is always accurate.