Sydney to Viana do Castelo time converter

Viana do Castelo is 10 hours behind Sydney. When it is 9:00 AM in Sydney, it is 11:00 PM (Mon, Oct 19) in Viana do Castelo.

Sydney AEDT

Tuesday, October 20, 2026

Viana do Castelo WEST

Tuesday, October 20, 2026

Sydney
New South Wales, Australia
Tue, Oct 20
AEDTUTC+11
Viana do Castelo
Portugal
Tue, Oct 20
WESTUTC+1-10h
Finding your time zone…
Shared working hours (9:00–18:00)

Sydney to Viana do Castelo conversion table

Every hour of today in Sydney and the matching time in Viana do Castelo. Light rows are typical working hours (9:00–18:00).

SydneyViana do Castelo
12:00 AM2:00 PM−1 day
1:00 AM3:00 PM−1 day
2:00 AM4:00 PM−1 day
3:00 AM5:00 PM−1 day
4:00 AM6:00 PM−1 day
5:00 AM7:00 PM−1 day
6:00 AM8:00 PM−1 day
7:00 AM9:00 PM−1 day
8:00 AM10:00 PM−1 day
9:00 AM11:00 PM−1 day
10:00 AM12:00 AM
11:00 AM1:00 AM
12:00 PM2:00 AM
1:00 PM3:00 AM
2:00 PM4:00 AM
3:00 PM5:00 AM
4:00 PM6:00 AM
5:00 PM7:00 AM
6:00 PM8:00 AM
7:00 PM9:00 AM
8:00 PM10:00 AM
9:00 PM11:00 AM
10:00 PM12:00 PM
11:00 PM1:00 PM

Best time to call or meet

Working hours don't overlap fully. The closest fit is 5:00 PM – 6:00 PM in Sydney (7:00 AM – 8:00 AM in Viana do Castelo): working hours on one side, early or late on the other.

Daylight saving time and the difference

The difference changes during the year because Sydney and Viana do Castelo switch clocks on different dates:

  • Oct 20, 2026 – Oct 25, 2026: -10h
  • Oct 25, 2026 – Mar 28, 2027: -11h
  • Mar 28, 2027 – Apr 4, 2027: -10h
  • Apr 4, 2027 – Oct 3, 2027: -9h
  • Oct 3, 2027 – Oct 20, 2027: -10h

Distance

Sydney and Viana do Castelo are 18,063 km (11,224 miles) apart in a straight line.

More conversions

Viana do Castelo to SydneySydney to New YorkSydney to LondonSydney to Los AngelesSydney to ChicagoSydney to TorontoSydney to São PauloSydney to ParisSydney to BerlinSydney to MoscowSydney to DubaiSydney to New DelhiSydney to Bangkok
New York to Viana do CasteloLondon to Viana do CasteloLos Angeles to Viana do CasteloChicago to Viana do CasteloToronto to Viana do CasteloSão Paulo to Viana do CasteloParis to Viana do CasteloBerlin to Viana do CasteloMoscow to Viana do CasteloDubai to Viana do CasteloNew Delhi to Viana do CasteloBangkok to Viana do Castelo

Questions and answers

What is the time difference between Sydney and Viana do Castelo?

Viana do Castelo is 10 hours behind Sydney.

What time is it in Viana do Castelo when it is 9 AM in Sydney?

When it is 9:00 AM in Sydney, it is 11:00 PM (Mon, Oct 19) in Viana do Castelo.

When is the best time to call Viana do Castelo from Sydney?

Working hours don't overlap fully. The closest fit is 5:00 PM – 6:00 PM in Sydney (7:00 AM – 8:00 AM in Viana do Castelo): working hours on one side, early or late on the other.

Does the time difference between Sydney and Viana do Castelo change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.