Buenos Aires is 5 hours behind of Brussels right now.
Brussels
Wednesday, October 14, 2026
Central European Summer Time (CEST) · UTC+2
Buenos Aires
Wednesday, October 14, 2026
Argentina Standard Time (UTC−3) · UTC−3
Convert Brussels to Buenos Aires
Brussels 18:01 = Buenos Aires 13:01
Brussels to Buenos Aires time chart, hour by hour
Brussels
Buenos Aires
00:00
19:00 −1 day
01:00
20:00 −1 day
02:00
21:00 −1 day
03:00
22:00 −1 day
04:00
23:00 −1 day
05:00
00:00
06:00
01:00
07:00
02:00
08:00
03:00
09:00
04:00
10:00
05:00
11:00
06:00
12:00
07:00
13:00
08:00
14:00
09:00
15:00
10:00
16:00
11:00
17:00
12:00
18:00
13:00
19:00
14:00
20:00
15:00
21:00
16:00
22:00
17:00
23:00
18:00
Highlighted rows fall within 09:00–18:00 in both places: 4 shared working hours.
Clock changes in Brussels and Buenos Aires
Brussels
Central European Summer Time (CEST)
Next clock change Sun 25 Oct 2026 (UTC+2 → UTC+1)
Buenos Aires
Argentina Standard Time (UTC−3)
No daylight saving time.
Time difference between Brussels and Buenos Aires today
Today Buenos Aires is 5 hours behind of Brussels. When it is 09:00 in Brussels, it is 04:00 in Buenos Aires. Brussels is on Central European Summer Time (CEST); Buenos Aires is on Argentina Standard Time (UTC−3).
When the Brussels to Buenos Aires time difference changes
For most of the year Buenos Aires is 5 hours behind of Brussels. From 25 October to 31 December 2026, Buenos Aires is 4 hours behind of Brussels instead, because the two places change their clocks on different dates. Meetings booked by the usual gap land an hour off in those weeks.
Dates
Buenos Aires vs Brussels
Length
29 March 2026 to 24 October 2026
5 hours behind
210 days
25 October 2026 to 31 December 2026
4 hours behind
68 days
1 January 2027 to 27 March 2027
4 hours behind
86 days
28 March 2027 to 30 October 2027
5 hours behind
217 days
31 October 2027 to 31 December 2027
4 hours behind
62 days
Calling hours for Brussels and Buenos Aires
When Buenos Aires is 5 hours behind of Brussels: 3 shared office hours, 14:00 to 17:00 in Brussels (09:00 to 12:00 in Buenos Aires).
When Buenos Aires is 4 hours behind of Brussels: 4 shared office hours, 13:00 to 17:00 in Brussels (09:00 to 13:00 in Buenos Aires).
Frequently asked questions about Brussels and Buenos Aires time
What time is it in Buenos Aires when it is 9:00 AM in Brussels?
04:00 today; Buenos Aires is 5 hours behind of Brussels.
Does the time difference between Brussels and Buenos Aires change?
Yes. It is usually 5 hours behind, but changes when one side moves its clocks: 4 hours behind from 25 October to 31 December 2026; 4 hours behind from 1 January to 27 March 2027.
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