Time Difference Between United States and Argentina
As of 31 August 2026, Argentina is 1 hour ahead of United States. That number is not constant. Over the course of a year, because of daylight saving changes, Buenos Aires, Argentina ranges from 1 hour ahead to 2 hours ahead relative to New York, United States. The calculator below is always up to date.
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New York, United States
18:34
Mon, Aug 31, 2026
UTC-4 · EDT · America/New_York
Buenos Aires, Argentina
+1h19:34
Mon, Aug 31, 2026
UTC-3 · America/Argentina/Buenos_Aires
Argentina is 1 hour ahead of United States.
Time zone details
| Place | Local date | Time zone | UTC offset | Summer time |
|---|---|---|---|---|
| United States | Monday, August 31, 2026 | EDTAmerica/New_York | UTC-4 | Active now |
| Argentina | Monday, August 31, 2026 | America/Argentina/Buenos_Aires | UTC-3 | Not observed |
United States: The United States spans six main time zones. This page uses Eastern Time; Pacific Time is 3 hours behind it.
Hour by hour: United States to Argentina
Every hour of today in United States and what it is in Argentina. Highlighted rows fall inside Argentina working hours (09:00–18:00).
| United States | Argentina |
|---|---|
| 00:00 | 01:00 |
| 01:00 | 02:00 |
| 02:00 | 03:00 |
| 03:00 | 04:00 |
| 04:00 | 05:00 |
| 05:00 | 06:00 |
| 06:00 | 07:00 |
| 07:00 | 08:00 |
| 08:00 | 09:00 |
| 09:00 | 10:00 |
| 10:00 | 11:00 |
| 11:00 | 12:00 |
| United States | Argentina |
|---|---|
| 12:00 | 13:00 |
| 13:00 | 14:00 |
| 14:00 | 15:00 |
| 15:00 | 16:00 |
| 16:00 | 17:00 |
| 17:00 | 18:00 |
| 18:00 | 19:00 |
| 19:00 | 20:00 |
| 20:00 | 21:00 |
| 21:00 | 22:00 |
| 22:00 | 23:00 |
| 23:00 | 00:00next day |
Best time to call or meet
Overlapping working hours
09:00–17:00 in United States (10:00–18:00 in Argentina)
Both places are inside 09:00–18:00 for 8 hours a day. Anything in this window works without asking anyone to stay late.
Reasonable calling hours
08:00–20:00 in United States (09:00–21:00 in Argentina)
Both people are awake and available between 08:00 and 21:00 local time during this window.
When this difference changes
United States puts its clocks back on Sunday, November 1, 2026
The local offset moves from UTC-4 to UTC-5. After that date, Argentina is 2 hours ahead of United States — instead of 1 hour ahead, as it is today.
Planning something with more than two places?
Adding a third city usually kills the obvious answer. The Meeting Time Finder takes up to five cities at once and shows only the hours that work for everybody.
United States and Argentina: common questions
What is the time difference between United States and Argentina?
As of 31 August 2026, Argentina is 1 hour ahead of United States. The gap is not fixed: across the year, Argentina ranges from 1 hour ahead to 2 hours ahead relative to United States, as clocks change. The calculator on this page always shows the difference for right now.
When it is 9:00 AM in United States, what time is it in Argentina?
It is 10:00 AM in Buenos Aires, Argentina. Use the time field in the calculator above to check any other hour.
Is Argentina ahead of or behind United States?
Argentina is ahead of United States by 1 hour at the moment. In practical terms, the working day in Argentina starts and ends earlier in United States terms.
Do United States and Argentina observe daylight saving time?
United States changes its clocks twice a year; Argentina does not. The difference therefore shifts by an hour when United States switches: across the year, Argentina ranges from 1 hour ahead to 2 hours ahead relative to United States.
What is the best time to call Argentina from United States?
Working hours overlap between 09:00 and 17:00 United States time, which is 10:00 to 18:00 in Argentina. Calls inside that window reach both sides during the normal working day.
Related comparisons
Local dates shown for New York, United States (UTC-4) and Buenos Aires, Argentina (UTC-3) were generated on Monday, August 31, 2026 UTC and refresh in your browser.