Time Difference Between Hawaii Time and Portugal
As of 31 August 2026, Portugal is 11 hours ahead of Hawaii Time. That number is not constant. Over the course of a year, because of daylight saving changes, Lisbon, Portugal ranges from 10 hours ahead to 11 hours ahead relative to Hawaii Time, United States. The calculator below is always up to date.
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Hawaii Time, United States
12:34
Mon, Aug 31, 2026
UTC-10 · HST · Pacific/Honolulu
Lisbon, Portugal
+11h23:34
Mon, Aug 31, 2026
UTC+1 · Europe/Lisbon
Portugal is 11 hours ahead of Hawaii Time.
Time zone details
| Place | Local date | Time zone | UTC offset | Summer time |
|---|---|---|---|---|
| Hawaii Time | Monday, August 31, 2026 | HSTPacific/Honolulu | UTC-10 | Not observed |
| Portugal | Monday, August 31, 2026 | Europe/Lisbon | UTC+1 | Active now |
Hawaii Time: Covers Hawaii. Stays at UTC-10 all year — Hawaii does not observe daylight saving time.
Portugal: Mainland Portugal and Madeira share one zone. The Azores are 1 hour behind.
Hour by hour: Hawaii Time to Portugal
Every hour of today in Hawaii Time and what it is in Portugal. Highlighted rows fall inside Portugal working hours (09:00–18:00).
| Hawaii Time | Portugal |
|---|---|
| 00:00 | 11:00 |
| 01:00 | 12:00 |
| 02:00 | 13:00 |
| 03:00 | 14:00 |
| 04:00 | 15:00 |
| 05:00 | 16:00 |
| 06:00 | 17:00 |
| 07:00 | 18:00 |
| 08:00 | 19:00 |
| 09:00 | 20:00 |
| 10:00 | 21:00 |
| 11:00 | 22:00 |
| Hawaii Time | Portugal |
|---|---|
| 12:00 | 23:00 |
| 13:00 | 00:00next day |
| 14:00 | 01:00next day |
| 15:00 | 02:00next day |
| 16:00 | 03:00next day |
| 17:00 | 04:00next day |
| 18:00 | 05:00next day |
| 19:00 | 06:00next day |
| 20:00 | 07:00next day |
| 21:00 | 08:00next day |
| 22:00 | 09:00next day |
| 23:00 | 10:00next day |
Best time to call or meet
Overlapping working hours
No overlap
Standard working hours in Hawaii Time and Portugal never overlap. Someone has to start early or finish late — the calling window below is the practical compromise.
Reasonable calling hours
08:00–10:00 in Hawaii Time (19:00–21:00 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 10 hours ahead of Hawaii Time — instead of 11 hours 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.
Hawaii Time and Portugal: common questions
What is the time difference between Hawaii Time and Portugal?
As of 31 August 2026, Portugal is 11 hours ahead of Hawaii Time. The gap is not fixed: across the year, Portugal ranges from 10 hours ahead to 11 hours ahead relative to Hawaii Time, as clocks change. The calculator on this page always shows the difference for right now.
When it is 9:00 AM in Hawaii Time, what time is it in Portugal?
It is 08:00 PM in Lisbon, Portugal. Use the time field in the calculator above to check any other hour.
Is Portugal ahead of or behind Hawaii Time?
Portugal is ahead of Hawaii Time by 11 hours at the moment. In practical terms, the working day in Portugal starts and ends earlier in Hawaii Time terms.
Do Hawaii Time and Portugal observe daylight saving time?
Portugal changes its clocks twice a year; Hawaii Time does not. The difference therefore shifts by an hour when Portugal switches: across the year, Portugal ranges from 10 hours ahead to 11 hours ahead relative to Hawaii Time.
What is the best time to call Portugal from Hawaii Time?
Standard working hours in Hawaii Time and Portugal do not overlap at all, so one side has to take the call outside office hours. Early morning in Hawaii Time or late evening is usually the least disruptive option.
Related comparisons
Local dates shown for Hawaii Time, United States (UTC-10) and Lisbon, Portugal (UTC+1) were generated on Monday, August 31, 2026 UTC and refresh in your browser.