Sierra Vista, AZ to Lisbon: time difference
Lisbon is 8 h ahead of Sierra Vista, AZ. Live clocks for both, the working hours they share, and how each one sits against your own time.
+8 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Sierra Vista, AZ 01:07 1:07 AM Lisbon 09:07 9:07 AM You –:–
01:07 1:07 AM
Mountain Standard Time · UTC-7
☀️ 06:30 · 🌙 17:43
09:07 9:07 AM
Western European Summer Time · UTC+1
☀️ 07:53 · 🌙 18:50
·
+8 h
Lisbon is 8 h ahead of Sierra Vista, AZ.
When you, Sierra Vista, AZ and Lisbon are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Sierra Vista, AZ
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇵🇹 Lisbon
8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 Sierra Vista, AZ | 🇵🇹 Lisbon |
|---|---|---|
| Local time | 01:07 | 09:07 |
| Local date | Thursday, October 22, 2026 | Thursday, October 22, 2026 |
| Time zone | Mountain Standard Time | Western European Summer Time |
| UTC offset | UTC-7 | UTC+1 |
| Offset from Sierra Vista, AZ | — | +8 h |
| IANA zone | America/Phoenix | Europe/Lisbon |
| Daylight saving | Not observed | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 06:30 | 07:53 |
| Sunset | 17:43 | 18:50 |
| Daylight | 11 h 13 min | 10 h 57 min |
| People on this clock | 45,308 | 545,923 |
Compare Sierra Vista, AZ with another city
More comparisons with Sierra Vista, AZ: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Sierra Vista, AZ and Lisbon: common questions
What is the time difference between Sierra Vista, AZ, and Lisbon?
Lisbon is 8 hours ahead: it uses UTC+1, while Sierra Vista is on UTC−7.
What time is it in Lisbon when it is 9:00 AM in Sierra Vista, AZ?
When it is 9:00 AM in Sierra Vista, it is 5:00 PM in Lisbon.
What time is it in Lisbon when it is 6:00 PM in Sierra Vista, AZ?
When it is 6:00 PM in Sierra Vista, it is 2:00 AM (the next day) in Lisbon.
When is a good time to call Lisbon from Sierra Vista, AZ?
Between 9:00 AM and 10:00 AM in Sierra Vista – that is 5:00 PM to 6:00 PM in Lisbon – both places are within working hours (9:00 AM–6:00 PM).
From what time in Sierra Vista, AZ, is it tomorrow in Lisbon?
Once it is 4:00 PM in Sierra Vista, the date in Lisbon has already changed. Until 8:00 AM in Lisbon, it is still the previous day in Sierra Vista.
Is the time difference between Sierra Vista, AZ, and Lisbon the same all year?
No. Only Lisbon switches to summer time, so the gap changes twice a year. From October 25, 2026, Lisbon will be 7 hours ahead of Sierra Vista.
