Time Difference Between Eastern Time and Argentina
As of 31 August 2026, Argentina is 1 hour ahead of Eastern Time. 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 Eastern Time, United States. The calculator below is always up to date.
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Eastern Time, 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 Eastern Time.
Time zone details
| Place | Local date | Time zone | UTC offset | Summer time |
|---|---|---|---|---|
| Eastern Time | Monday, August 31, 2026 | EDTAmerica/New_York | UTC-4 | Active now |
| Argentina | Monday, August 31, 2026 | America/Argentina/Buenos_Aires | UTC-3 | Not observed |
Eastern Time: Covers the US East Coast, from New York to Miami to Atlanta. Switches between EST (UTC-5) and EDT (UTC-4) with daylight saving.
Hour by hour: Eastern Time to Argentina
Every hour of today in Eastern Time and what it is in Argentina. Highlighted rows fall inside Argentina working hours (09:00–18:00).
| Eastern Time | 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 |
| Eastern Time | 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 Eastern Time (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 Eastern Time (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
Eastern Time 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 Eastern Time — 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.
Eastern Time and Argentina: common questions
What is the time difference between Eastern Time and Argentina?
As of 31 August 2026, Argentina is 1 hour ahead of Eastern Time. The gap is not fixed: across the year, Argentina ranges from 1 hour ahead to 2 hours ahead relative to Eastern Time, as clocks change. The calculator on this page always shows the difference for right now.
When it is 9:00 AM in Eastern Time, 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 Eastern Time?
Argentina is ahead of Eastern Time by 1 hour at the moment. In practical terms, the working day in Argentina starts and ends earlier in Eastern Time terms.
Do Eastern Time and Argentina observe daylight saving time?
Eastern Time changes its clocks twice a year; Argentina does not. The difference therefore shifts by an hour when Eastern Time switches: across the year, Argentina ranges from 1 hour ahead to 2 hours ahead relative to Eastern Time.
What is the best time to call Argentina from Eastern Time?
Working hours overlap between 09:00 and 17:00 Eastern Time 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 Eastern Time, United States (UTC-4) and Buenos Aires, Argentina (UTC-3) were generated on Monday, August 31, 2026 UTC and refresh in your browser.