Buenos Aires is 4 hours ahead of Las Vegas right now.
Las Vegas
Thursday, October 22, 2026
Pacific Daylight Time (PDT) · UTC−7
Buenos Aires
Thursday, October 22, 2026
Argentina Standard Time (UTC−3) · UTC−3
Convert Las Vegas to Buenos Aires
Las Vegas 15:44 = Buenos Aires 19:44
Las Vegas to Buenos Aires time chart, hour by hour
Las Vegas
Buenos Aires
00:00
04:00
01:00
05:00
02:00
06:00
03:00
07:00
04:00
08:00
05:00
09:00
06:00
10:00
07:00
11:00
08:00
12:00
09:00
13:00
10:00
14:00
11:00
15:00
12:00
16:00
13:00
17:00
14:00
18:00
15:00
19:00
16:00
20:00
17:00
21:00
18:00
22:00
19:00
23:00
20:00
00:00 +1 day
21:00
01:00 +1 day
22:00
02:00 +1 day
23:00
03:00 +1 day
Highlighted rows fall within 09:00–18:00 in both places: 5 shared working hours.
Clock changes in Las Vegas and Buenos Aires
Las Vegas
Pacific Daylight Time (PDT)
Next clock change Sun 1 Nov 2026 (UTC−7 → UTC−8)
Buenos Aires
Argentina Standard Time (UTC−3)
No daylight saving time.
Time difference between Las Vegas and Buenos Aires today
Today Buenos Aires is 4 hours ahead of Las Vegas. When it is 09:00 in Las Vegas, it is 13:00 in Buenos Aires. Las Vegas is on Pacific Daylight Time (PDT); Buenos Aires is on Argentina Standard Time (UTC−3).
When the Las Vegas to Buenos Aires time difference changes
For most of the year Buenos Aires is 4 hours ahead of Las Vegas. From 1 November to 31 December 2026, Buenos Aires is 5 hours ahead of Las Vegas 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 Las Vegas
Length
8 March 2026 to 31 October 2026
4 hours ahead
238 days
1 November 2026 to 31 December 2026
5 hours ahead
61 days
1 January 2027 to 13 March 2027
5 hours ahead
72 days
14 March 2027 to 6 November 2027
4 hours ahead
238 days
7 November 2027 to 31 December 2027
5 hours ahead
55 days
Best time for a meeting between Las Vegas and Buenos Aires
When Buenos Aires is 4 hours ahead of Las Vegas: 4 shared office hours, 09:00 to 13:00 in Las Vegas (13:00 to 17:00 in Buenos Aires).
When Buenos Aires is 5 hours ahead of Las Vegas: 3 shared office hours, 09:00 to 12:00 in Las Vegas (14:00 to 17:00 in Buenos Aires).
Frequently asked questions about Las Vegas and Buenos Aires time
What time is it in Buenos Aires when it is 9:00 AM in Las Vegas?
13:00 today; Buenos Aires is 4 hours ahead of Las Vegas.
Does the time difference between Las Vegas and Buenos Aires change?
Yes. It is usually 4 hours ahead, but changes when one side moves its clocks: 5 hours ahead from 1 November to 31 December 2026; 5 hours ahead from 1 January to 13 March 2027.
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