Vienna to Ottawa South time converter
Ottawa South is 6 hours behind Vienna. When it is 9:00 AM in Vienna, it is 3:00 AM in Ottawa South.
Vienna CEST
Wednesday, October 21, 2026
Ottawa South EDT
Wednesday, October 21, 2026
10:26 AM in Vienna, Wednesday, October 21, 2026
Vienna to Ottawa South conversion table
Every hour of today in Vienna and the matching time in Ottawa South. Light rows are typical working hours (9:00–18:00).
| Vienna | Ottawa South |
|---|---|
| 12:00 AM | 6:00 PM−1 day |
| 1:00 AM | 7:00 PM−1 day |
| 2:00 AM | 8:00 PM−1 day |
| 3:00 AM | 9:00 PM−1 day |
| 4:00 AM | 10:00 PM−1 day |
| 5:00 AM | 11:00 PM−1 day |
| 6:00 AM | 12:00 AM |
| 7:00 AM | 1:00 AM |
| 8:00 AM | 2:00 AM |
| 9:00 AM | 3:00 AM |
| 10:00 AM | 4:00 AM |
| 11:00 AM | 5:00 AM |
| 12:00 PM | 6:00 AM |
| 1:00 PM | 7:00 AM |
| 2:00 PM | 8:00 AM |
| 3:00 PM | 9:00 AM |
| 4:00 PM | 10:00 AM |
| 5:00 PM | 11:00 AM |
| 6:00 PM | 12:00 PM |
| 7:00 PM | 1:00 PM |
| 8:00 PM | 2:00 PM |
| 9:00 PM | 3:00 PM |
| 10:00 PM | 4:00 PM |
| 11:00 PM | 5:00 PM |
Best time to call or meet
Both sides are at work from 3:00 PM – 6:00 PM in Vienna (9:00 AM – 12:00 PM in Ottawa South).
Daylight saving time and the difference
The difference changes during the year because Vienna and Ottawa South switch clocks on different dates:
- Oct 21, 2026 – Oct 25, 2026: -6h
- Oct 25, 2026 – Nov 1, 2026: -5h
- Nov 1, 2026 – Mar 14, 2027: -6h
- Mar 14, 2027 – Mar 28, 2027: -5h
- Mar 28, 2027 – Oct 21, 2027: -6h
Distance
Vienna and Ottawa South are 6,568 km (4,081 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Vienna and Ottawa South?
Ottawa South is 6 hours behind Vienna.
What time is it in Ottawa South when it is 9 AM in Vienna?
When it is 9:00 AM in Vienna, it is 3:00 AM in Ottawa South.
When is the best time to call Ottawa South from Vienna?
Both sides are at work from 3:00 PM – 6:00 PM in Vienna (9:00 AM – 12:00 PM in Ottawa South).
Does the time difference between Vienna and Ottawa South change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.