Buenos Aires to Union time converter

Union is 1 hour behind Buenos Aires. When it is 9:00 AM in Buenos Aires, it is 8:00 AM in Union.

Buenos Aires ART

Monday, October 19, 2026

Union EDT

Monday, October 19, 2026

Buenos Aires
Argentina
Mon, Oct 19
ARTUTC-3
Union
New Jersey, United States
Mon, Oct 19
EDTUTC-4-1h
Finding your time zone…
Shared working hours (9:00–18:00)

Buenos Aires to Union conversion table

Every hour of today in Buenos Aires and the matching time in Union. Light rows are typical working hours (9:00–18:00).

Buenos AiresUnion
12:00 AM11:00 PM−1 day
1:00 AM12:00 AM
2:00 AM1:00 AM
3:00 AM2:00 AM
4:00 AM3:00 AM
5:00 AM4:00 AM
6:00 AM5:00 AM
7:00 AM6:00 AM
8:00 AM7:00 AM
9:00 AM8:00 AM
10:00 AM9:00 AM
11:00 AM10:00 AM
12:00 PM11:00 AM
1:00 PM12:00 PM
2:00 PM1:00 PM
3:00 PM2:00 PM
4:00 PM3:00 PM
5:00 PM4:00 PM
6:00 PM5:00 PM
7:00 PM6:00 PM
8:00 PM7:00 PM
9:00 PM8:00 PM
10:00 PM9:00 PM
11:00 PM10:00 PM

Best time to call or meet

Both sides are at work from 10:00 AM – 6:00 PM in Buenos Aires (9:00 AM – 5:00 PM in Union).

Daylight saving time and the difference

The difference changes during the year because Buenos Aires and Union switch clocks on different dates:

  • Oct 19, 2026 – Nov 1, 2026: -1h
  • Nov 1, 2026 – Mar 14, 2027: -2h
  • Mar 14, 2027 – Oct 19, 2027: -1h

Distance

Buenos Aires and Union are 8,531 km (5,301 miles) apart in a straight line.

More conversions

Union to Buenos AiresBuenos Aires to New YorkBuenos Aires to LondonBuenos Aires to Los AngelesBuenos Aires to ChicagoBuenos Aires to TorontoBuenos Aires to São PauloBuenos Aires to ParisBuenos Aires to BerlinBuenos Aires to MoscowBuenos Aires to DubaiBuenos Aires to New DelhiBuenos Aires to Bangkok
New York to UnionLondon to UnionLos Angeles to UnionChicago to UnionToronto to UnionSão Paulo to UnionParis to UnionBerlin to UnionMoscow to UnionDubai to UnionNew Delhi to UnionBangkok to Union

Questions and answers

What is the time difference between Buenos Aires and Union?

Union is 1 hour behind Buenos Aires.

What time is it in Union when it is 9 AM in Buenos Aires?

When it is 9:00 AM in Buenos Aires, it is 8:00 AM in Union.

When is the best time to call Union from Buenos Aires?

Both sides are at work from 10:00 AM – 6:00 PM in Buenos Aires (9:00 AM – 5:00 PM in Union).

Does the time difference between Buenos Aires and Union change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.