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London to Buenos Aires time: best hours to meet

Planning a call between London and Buenos Aires? Here's the time in both cities right now and the hours when both of you are at work.

London
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Buenos Aires
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Buenos Aires is 4 hours behind London for most of the year.

Best time to meet: 13:00–17:00 in London = 9:00–13:00 in Buenos Aires (4 hours when you're both at work).

The next 24 hours

Purple = working hours (9–5) in one city. Green = working hours in both.

LondonBuenos Aires
23:00 Sat20:00 Sat
0:00 Sun21:00 Sat
2:00 Sun22:00 Sat
3:00 Sun23:00 Sat
4:00 Sun0:00 Sun
5:00 Sun1:00 Sun
6:00 Sun2:00 Sun
7:00 Sun3:00 Sun
8:00 Sun4:00 Sun
9:00 Sun5:00 Sun
10:00 Sun6:00 Sun
11:00 Sun7:00 Sun
12:00 Sun8:00 Sun
13:00 Sun9:00 Sun
14:00 Sun10:00 Sun
15:00 Sun11:00 Sun
16:00 Sun12:00 Sun
17:00 Sun13:00 Sun
18:00 Sun14:00 Sun
19:00 Sun15:00 Sun
20:00 Sun16:00 Sun
21:00 Sun17:00 Sun
22:00 Sun18:00 Sun
23:00 Sun19:00 Sun

London and Buenos Aires time difference through the year

Buenos Aires is 4 hours behind London from 28 March to 30 October, and 3 hours behind from 31 October to 27 March (dates for 2027).

The difference changes because London changes its clocks for daylight saving time and Buenos Aires doesn't.

Best hours for a London–Buenos Aires meeting

When Buenos Aires is 4 hours behind London: 13:00–17:00 in London = 9:00–13:00 in Buenos Aires (4 hours when you're both at work).

When Buenos Aires is 3 hours behind London: 12:00–17:00 in London = 9:00–14:00 in Buenos Aires (5 hours when you're both at work).

Book it without the math

AlignHour is a free Chrome extension for scheduling meetings with clients in Buenos Aires, London and anywhere else. Everyone sees the meeting in their own time, the invite goes from your Google Calendar, and public holidays in both countries are flagged.

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