Offset
The time difference between Washington and Buenos Aires is 1 hour.
Washington (EDT) is behind Buenos Aires (ART).
EDT: UTC-4
ART: UTC-3
Washington is currently observing daylight saving time; Buenos Aires is not.
When to schedule
Business-hours overlap: 9 AM–4 PM in Washington (10 AM–5 PM in Buenos Aires).
Both teams are in working hours during this window on weekdays.
Suggested time: 12:00 PM Washington (1:00 PM Buenos Aires).
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
United States
- New Year's DayThu, Jan 1
- Martin Luther King, Jr. DayMon, Jan 19
- Presidents DayMon, Feb 16
- Memorial DayMon, May 25
- Juneteenth National Independence DayFri, Jun 19
- Independence DayFri, Jul 3
- Labour DayMon, Sep 7
- Columbus DayMon, Oct 12
- Veterans DayWed, Nov 11
- Thanksgiving DayThu, Nov 26
- Christmas DayFri, Dec 25
Argentina
- New Year's DayThu, Jan 1
- CarnivalMon, Feb 16
- CarnivalTue, Feb 17
- Day of Remembrance for Truth and JusticeTue, Mar 24
- Day of the Veterans and Fallen of the Malvinas WarThu, Apr 2
- Good FridayFri, Apr 3
- Labour DayFri, May 1
- May RevolutionMon, May 25
- Anniversary of the Passing of General Martín Miguel de GüemesMon, Jun 15
- General Manuel Belgrano Memorial DaySat, Jun 20
- Independence DayThu, Jul 9
- General José de San Martín Memorial DayMon, Aug 17
- Day of Respect for Cultural DiversityMon, Oct 12
- National Sovereignty DayMon, Nov 23
- Immaculate Conception DayTue, Dec 8
- Christmas DayFri, Dec 25
About these zones
Washington uses Eastern Time (EST, or EDT). To call United States, dial +1.
Buenos Aires uses Argentina Time (ART). To call Argentina, dial +54.
Buenos Aires is approximately 5,200 miles south of Washington.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Washington | Buenos Aires | Day |
|---|---|---|
| 12:00 am | 1:00 am | Same day |
| 1:00 am | 2:00 am | Same day |
| 2:00 am | 3:00 am | Same day |
| 3:00 am | 4:00 am | Same day |
| 4:00 am | 5:00 am | Same day |
| 5:00 am | 6:00 am | Same day |
| 6:00 am | 7:00 am | Same day |
| 7:00 am | 8:00 am | Same day |
| 8:00 am | 9:00 am | Same day |
| 9:00 am | 10:00 am | Same day |
| 10:00 am | 11:00 am | Same day |
| 11:00 am | 12:00 pm | Same day |
| 12:00 pm | 1:00 pm | Same day |
| 1:00 pm | 2:00 pm | Same day |
| 2:00 pm | 3:00 pm | Same day |
| 3:00 pm | 4:00 pm | Same day |
| 4:00 pm | 5:00 pm | Same day |
| 5:00 pm | 6:00 pm | Same day |
| 6:00 pm | 7:00 pm | Same day |
| 7:00 pm | 8:00 pm | Same day |
| 8:00 pm | 9:00 pm | Same day |
| 9:00 pm | 10:00 pm | Same day |
| 10:00 pm | 11:00 pm | Same day |
| 11:00 pm | 12:00 am | +1 day |
Daylight saving time
Washington observes daylight saving time; Buenos Aires does not. The offset between the two zones changes when Washington transitions: on Sunday, November 1, 2026, clocks fall back from EDT to EST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:44 AM
- Sunset
- 8:31 PM
- Day length
- 14h 46m
- Sunrise
- 7:55 AM
- Sunset
- 5:51 PM
- Day length
- 9h 56m
Daylight overlap: 9h 56m — 6:55 AM–4:51 PM in Washington (7:55 AM–5:51 PM in Buenos Aires). Both locations are in daylight during this window.
Cities in these zones
Other cities in Eastern Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Eastern Time
- EWR
- HPN
- JFK
- LGA
- TEB
- ILG
- PHL
- TTN
- CLT
- USA
Airports in Argentina Time
- AEP
- EZE
Related conversions
Common conversions
- What is 9:00 am Washington in Buenos Aires?
- 9:00 am Washington is 10:00 am Buenos Aires.
- What is 12:00 pm Washington in Buenos Aires?
- 12:00 pm Washington is 1:00 pm Buenos Aires.
- What is 12:30 pm Washington in Buenos Aires?
- 12:30 pm Washington is 1:30 pm Buenos Aires.
- What is 2:00 pm Washington in Buenos Aires?
- 2:00 pm Washington is 3:00 pm Buenos Aires.
- What is 5:00 pm Washington in Buenos Aires?
- 5:00 pm Washington is 6:00 pm Buenos Aires.
- What is 11:30 pm Washington in Buenos Aires?
- 11:30 pm Washington is 12:30 am Buenos Aires, the next day.