Buenos Aires to Westmont time converter
Westmont is 4 hours behind Buenos Aires. When it is 9:00 AM in Buenos Aires, it is 5:00 AM in Westmont.
Buenos Aires ART
Wednesday, October 21, 2026
Westmont PDT
Wednesday, October 21, 2026
12:53 PM in Buenos Aires, Wednesday, October 21, 2026
Buenos Aires to Westmont conversion table
Every hour of today in Buenos Aires and the matching time in Westmont. Light rows are typical working hours (9:00–18:00).
| Buenos Aires | Westmont |
|---|---|
| 12:00 AM | 8:00 PM−1 day |
| 1:00 AM | 9:00 PM−1 day |
| 2:00 AM | 10:00 PM−1 day |
| 3:00 AM | 11:00 PM−1 day |
| 4:00 AM | 12:00 AM |
| 5:00 AM | 1:00 AM |
| 6:00 AM | 2:00 AM |
| 7:00 AM | 3:00 AM |
| 8:00 AM | 4:00 AM |
| 9:00 AM | 5:00 AM |
| 10:00 AM | 6:00 AM |
| 11:00 AM | 7:00 AM |
| 12:00 PM | 8:00 AM |
| 1:00 PM | 9:00 AM |
| 2:00 PM | 10:00 AM |
| 3:00 PM | 11:00 AM |
| 4:00 PM | 12:00 PM |
| 5:00 PM | 1:00 PM |
| 6:00 PM | 2:00 PM |
| 7:00 PM | 3:00 PM |
| 8:00 PM | 4:00 PM |
| 9:00 PM | 5:00 PM |
| 10:00 PM | 6:00 PM |
| 11:00 PM | 7:00 PM |
Best time to call or meet
Both sides are at work from 1:00 PM – 6:00 PM in Buenos Aires (9:00 AM – 2:00 PM in Westmont).
Daylight saving time and the difference
The difference changes during the year because Buenos Aires and Westmont switch clocks on different dates:
- Oct 21, 2026 – Nov 1, 2026: -4h
- Nov 1, 2026 – Mar 14, 2027: -5h
- Mar 14, 2027 – Oct 21, 2027: -4h
Distance
Buenos Aires and Westmont are 9,848 km (6,119 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Buenos Aires and Westmont?
Westmont is 4 hours behind Buenos Aires.
What time is it in Westmont when it is 9 AM in Buenos Aires?
When it is 9:00 AM in Buenos Aires, it is 5:00 AM in Westmont.
When is the best time to call Westmont from Buenos Aires?
Both sides are at work from 1:00 PM – 6:00 PM in Buenos Aires (9:00 AM – 2:00 PM in Westmont).
Does the time difference between Buenos Aires and Westmont change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.