Buenos Aires & London time difference

London is 4 hours ahead of Buenos Aires (3 hours in winter). Current time, 24-hour table, DST changes and the best time to call.

London is 4 hours ahead of Buenos Aires (3 hours in winter).

City Comparison Insights

  • Buenos Aires — Argentina, America/Argentina/Buenos_Aires (UTC-3), ARS, Local time: 21:28
  • London — United Kingdom, Europe/London (UTC+1), GBP, Local time: 01:28

Buenos Aires to London time conversion table (24 hours)

Each hour in Buenos Aires with the matching time in London. +1 is the next day, −1 the previous day.

Buenos AiresLondon
00:0004:00
01:0005:00
02:0006:00
03:0007:00
04:0008:00
05:0009:00
06:0010:00
07:0011:00
08:0012:00
09:0013:00
10:0014:00
11:0015:00
12:0016:00
13:0017:00
14:0018:00
15:0019:00
16:0020:00
17:0021:00
18:0022:00
19:0023:00
20:0000:00 +1
21:0001:00 +1
22:0002:00 +1
23:0003:00 +1

Best time to call or meet

Business hours overlap: Buenos Aires 09:00–13:00 = London 13:00–17:00.

Daylight saving time (DST)

  • Summer time: 4 hours / Winter time: 3 hours.
  • From October 25, 2026, the difference becomes 3 hours.
  • From March 28, 2027, the difference becomes 4 hours.
  • Buenos Aires: no daylight saving time.
  • London: UTC offset changes from UTC+1 to UTC±0 on October 25, 2026.

Frequently asked questions

What is the time difference between Buenos Aires and London?

London is 4 hours ahead of Buenos Aires (3 hours in winter).

What time is it in London when it is 9:00 in Buenos Aires?

When it is 9:00 in Buenos Aires, it is 13:00 in London.

What is the best time to call from Buenos Aires to London?

Business hours overlap: Buenos Aires 09:00–13:00 = London 13:00–17:00.

Does daylight saving time change the time difference between Buenos Aires and London?

Summer time: 4 hours / Winter time: 3 hours. From October 25, 2026, the difference becomes 3 hours.

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