Time Difference Between Argentina and Portugal
As of 31 August 2026, Portugal is 4 hours ahead of Argentina. That number is not constant. Over the course of a year, because of daylight saving changes, Lisbon, Portugal ranges from 3 hours ahead to 4 hours ahead relative to Buenos Aires, Argentina. The calculator below is always up to date.
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Buenos Aires, Argentina
19:34
Mon, Aug 31, 2026
UTC-3 · America/Argentina/Buenos_Aires
Lisbon, Portugal
+4h23:34
Mon, Aug 31, 2026
UTC+1 · Europe/Lisbon
Portugal is 4 hours ahead of Argentina.
Time zone details
| Place | Local date | Time zone | UTC offset | Summer time |
|---|---|---|---|---|
| Argentina | Monday, August 31, 2026 | America/Argentina/Buenos_Aires | UTC-3 | Not observed |
| Portugal | Monday, August 31, 2026 | Europe/Lisbon | UTC+1 | Active now |
Portugal: Mainland Portugal and Madeira share one zone. The Azores are 1 hour behind.
Hour by hour: Argentina to Portugal
Every hour of today in Argentina and what it is in Portugal. Highlighted rows fall inside Portugal working hours (09:00–18:00).
| Argentina | Portugal |
|---|---|
| 00:00 | 04:00 |
| 01:00 | 05:00 |
| 02:00 | 06:00 |
| 03:00 | 07:00 |
| 04:00 | 08:00 |
| 05:00 | 09:00 |
| 06:00 | 10:00 |
| 07:00 | 11:00 |
| 08:00 | 12:00 |
| 09:00 | 13:00 |
| 10:00 | 14:00 |
| 11:00 | 15:00 |
| Argentina | Portugal |
|---|---|
| 12:00 | 16:00 |
| 13:00 | 17:00 |
| 14:00 | 18:00 |
| 15:00 | 19:00 |
| 16:00 | 20:00 |
| 17:00 | 21:00 |
| 18:00 | 22:00 |
| 19:00 | 23:00 |
| 20:00 | 00:00next day |
| 21:00 | 01:00next day |
| 22:00 | 02:00next day |
| 23:00 | 03:00next day |
Best time to call or meet
Overlapping working hours
09:00–14:00 in Argentina (13:00–18:00 in Portugal)
Both places are inside 09:00–18:00 for 5 hours a day. Anything in this window works without asking anyone to stay late.
Reasonable calling hours
08:00–17:00 in Argentina (12:00–21:00 in Portugal)
Both people are awake and available between 08:00 and 21:00 local time during this window.
When this difference changes
Portugal puts its clocks back on Sunday, October 25, 2026
The local offset moves from UTC+1 to UTC. After that date, Portugal is 3 hours ahead of Argentina — instead of 4 hours ahead, as it is today.
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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.
Argentina and Portugal: common questions
What is the time difference between Argentina and Portugal?
As of 31 August 2026, Portugal is 4 hours ahead of Argentina. The gap is not fixed: across the year, Portugal ranges from 3 hours ahead to 4 hours ahead relative to Argentina, as clocks change. The calculator on this page always shows the difference for right now.
When it is 9:00 AM in Argentina, what time is it in Portugal?
It is 01:00 PM in Lisbon, Portugal. Use the time field in the calculator above to check any other hour.
Is Portugal ahead of or behind Argentina?
Portugal is ahead of Argentina by 4 hours at the moment. In practical terms, the working day in Portugal starts and ends earlier in Argentina terms.
Do Argentina and Portugal observe daylight saving time?
Portugal changes its clocks twice a year; Argentina does not. The difference therefore shifts by an hour when Portugal switches: across the year, Portugal ranges from 3 hours ahead to 4 hours ahead relative to Argentina.
What is the best time to call Portugal from Argentina?
Working hours overlap between 09:00 and 14:00 Argentina time, which is 13:00 to 18:00 in Portugal. Calls inside that window reach both sides during the normal working day.
Related comparisons
Local dates shown for Buenos Aires, Argentina (UTC-3) and Lisbon, Portugal (UTC+1) were generated on Monday, August 31, 2026 UTC and refresh in your browser.