Austin, TX to Viana do Castelo: time difference
Viana do Castelo is 6 h ahead of Austin, TX. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇵🇹 Viana do Castelo, Portugal
43
- Western European Summer Time
- UTC+1
- Night
☀️ 07:50 · 🌙 18:53 · 11 h 3 min
+6 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Austin, TX 18:24 6:24 PM Viana do Castelo 00:24 12:24 AM You –:–
18:24 6:24 PM
Central Daylight Time · UTC-5
☀️ 07:35 · 🌙 18:59
00:24 12:24 AM
Western European Summer Time · UTC+1
☀️ 07:50 · 🌙 18:53
·
+6 h
Viana do Castelo is 6 h ahead of Austin, TX.
When you, Austin, TX and Viana do Castelo are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Austin, TX
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
🇵🇹 Viana do Castelo
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 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 Austin, TX | 🇵🇹 Viana do Castelo |
|---|---|---|
| Local time | 18:24 | 00:24 |
| Local date | Saturday, October 17, 2026 | Sunday, October 18, 2026 |
| Time zone | Central Daylight Time | Western European Summer Time |
| UTC offset | UTC-5 | UTC+1 |
| Offset from Austin, TX | — | +6 h |
| IANA zone | America/Chicago | Europe/Lisbon |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 07:35 | 07:50 |
| Sunset | 18:59 | 18:53 |
| Daylight | 11 h 24 min | 11 h 3 min |
| People on this clock | 974,447 | 85,784 |
Compare Austin, TX with another city
More comparisons with Austin, TX: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Austin, TX and Viana do Castelo: common questions
How many hours ahead of Austin, TX, is Viana do Castelo?
The clocks in Viana do Castelo are 6 hours ahead of those in Austin (UTC+1 and UTC−5).
If it is 9:00 AM in Austin, TX, what time is it in Viana do Castelo?
At 9:00 AM in Austin, clocks in Viana do Castelo show 3:00 PM.
What time is it in Viana do Castelo when it is 6:00 PM in Austin, TX?
When it is 6:00 PM in Austin, it is 12:00 AM (the next day) in Viana do Castelo.
When do working hours in Austin, TX, and in Viana do Castelo overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 12:00 PM in Austin, which is 3:00 PM to 6:00 PM in Viana do Castelo.
When is it already the next day in Viana do Castelo?
From 6:00 PM in Austin, TX, it is already the next day in Viana do Castelo. The other way round, until 6:00 AM in Viana do Castelo it is still the previous day in Austin.
Does the time difference between Austin, TX, and Viana do Castelo change?
Yes. Both places change their clocks, but on different dates. From October 25, 2026, Viana do Castelo will be 5 hours ahead of Austin.
