Vienna to Altos time converter

Altos is 5 hours behind Vienna. When it is 9:00 AM in Vienna, it is 4:00 AM in Altos.

Vienna CEST

Sunday, October 18, 2026

Altos BRT

Sunday, October 18, 2026

Austria
Sun, Oct 18
CESTUTC+2
Piauí, Brazil
Sun, Oct 18
BRTUTC-3-5h
Finding your time zone…

5:01 PM in Vienna, Sunday, October 18, 2026

Shared working hours (9:00–18:00)

Vienna to Altos conversion table

Every hour of today in Vienna and the matching time in Altos. Light rows are typical working hours (9:00–18:00).

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

Best time to call or meet

Both sides are at work from 2:00 PM – 6:00 PM in Vienna (9:00 AM – 1:00 PM in Altos).

Daylight saving time and the difference

The difference changes during the year because Vienna and Altos switch clocks on different dates:

  • Oct 18, 2026 – Oct 25, 2026: -5h
  • Oct 25, 2026 – Mar 28, 2027: -4h
  • Mar 28, 2027 – Oct 18, 2027: -5h

Distance

Vienna and Altos are 8,212 km (5,103 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Vienna and Altos?

Altos is 5 hours behind Vienna.

What time is it in Altos when it is 9 AM in Vienna?

When it is 9:00 AM in Vienna, it is 4:00 AM in Altos.

When is the best time to call Altos from Vienna?

Both sides are at work from 2:00 PM – 6:00 PM in Vienna (9:00 AM – 1:00 PM in Altos).

Does the time difference between Vienna and Altos change?

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