Time Difference Between Portugal and Arizona Time
As of 31 August 2026, Arizona Time is 8 hours behind Portugal. That number is not constant. Over the course of a year, because of daylight saving changes, Arizona Time, United States ranges from 8 hours behind to 7 hours behind relative to Lisbon, Portugal. The calculator below is always up to date.
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Lisbon, Portugal
23:34
Mon, Aug 31, 2026
UTC+1 · Europe/Lisbon
Arizona Time, United States
-8h15:34
Mon, Aug 31, 2026
UTC-7 · MST · America/Phoenix
Arizona Time is 8 hours behind Portugal.
Time zone details
| Place | Local date | Time zone | UTC offset | Summer time |
|---|---|---|---|---|
| Portugal | Monday, August 31, 2026 | Europe/Lisbon | UTC+1 | Active now |
| Arizona Time | Monday, August 31, 2026 | MSTAmerica/Phoenix | UTC-7 | Not observed |
Portugal: Mainland Portugal and Madeira share one zone. The Azores are 1 hour behind.
Arizona Time: Most of Arizona does not observe daylight saving time, so it stays at UTC-7 all year — the same clock as Mountain Standard Time in winter, but 1 hour behind Mountain Time in summer. The Navajo Nation in Arizona is the exception and does observe it.
Hour by hour: Portugal to Arizona Time
Every hour of today in Portugal and what it is in Arizona Time. Highlighted rows fall inside Arizona Time working hours (09:00–18:00).
| Portugal | Arizona Time |
|---|---|
| 00:00 | 16:00prev day |
| 01:00 | 17:00prev day |
| 02:00 | 18:00prev day |
| 03:00 | 19:00prev day |
| 04:00 | 20:00prev day |
| 05:00 | 21:00prev day |
| 06:00 | 22:00prev day |
| 07:00 | 23:00prev day |
| 08:00 | 00:00 |
| 09:00 | 01:00 |
| 10:00 | 02:00 |
| 11:00 | 03:00 |
| Portugal | Arizona Time |
|---|---|
| 12:00 | 04:00 |
| 13:00 | 05:00 |
| 14:00 | 06:00 |
| 15:00 | 07:00 |
| 16:00 | 08:00 |
| 17:00 | 09:00 |
| 18:00 | 10:00 |
| 19:00 | 11:00 |
| 20:00 | 12:00 |
| 21:00 | 13:00 |
| 22:00 | 14:00 |
| 23:00 | 15:00 |
Best time to call or meet
Overlapping working hours
17:00–18:00 in Portugal (09:00–10:00 in Arizona Time)
Both places are inside 09:00–18:00 for 1 hour a day. Anything in this window works without asking anyone to stay late.
Reasonable calling hours
16:00–21:00 in Portugal (08:00–13:00 in Arizona Time)
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, Arizona Time is 7 hours behind Portugal — instead of 8 hours behind, 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.
Portugal and Arizona Time: common questions
What is the time difference between Portugal and Arizona Time?
As of 31 August 2026, Arizona Time is 8 hours behind Portugal. The gap is not fixed: across the year, Arizona Time ranges from 8 hours behind to 7 hours behind relative to Portugal, as clocks change. The calculator on this page always shows the difference for right now.
When it is 9:00 AM in Portugal, what time is it in Arizona Time?
It is 01:00 AM in Arizona Time, United States. Use the time field in the calculator above to check any other hour.
Is Arizona Time ahead of or behind Portugal?
Arizona Time is behind Portugal by 8 hours at the moment. In practical terms, the working day in Arizona Time starts and ends later in Portugal terms.
Do Portugal and Arizona Time observe daylight saving time?
Portugal changes its clocks twice a year; Arizona Time does not. The difference therefore shifts by an hour when Portugal switches: across the year, Arizona Time ranges from 8 hours behind to 7 hours behind relative to Portugal.
What is the best time to call Arizona Time from Portugal?
Working hours overlap between 17:00 and 18:00 Portugal time, which is 09:00 to 10:00 in Arizona Time. Calls inside that window reach both sides during the normal working day.
Related comparisons
Local dates shown for Lisbon, Portugal (UTC+1) and Arizona Time, United States (UTC-7) were generated on Monday, August 31, 2026 UTC and refresh in your browser.