Oklahoma City to Vienna time converter
Vienna is 7 hours ahead of Oklahoma City. When it is 9:00 AM in Oklahoma City, it is 4:00 PM in Vienna.
Oklahoma City CDT
Tuesday, October 20, 2026
Vienna CEST
Wednesday, October 21, 2026
11:21 PM in Oklahoma City, Tuesday, October 20, 2026
Oklahoma City to Vienna conversion table
Every hour of today in Oklahoma City and the matching time in Vienna. Light rows are typical working hours (9:00–18:00).
| Oklahoma City | Vienna |
|---|---|
| 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 | 12:00 AM+1 day |
| 6:00 PM | 1:00 AM+1 day |
| 7:00 PM | 2:00 AM+1 day |
| 8:00 PM | 3:00 AM+1 day |
| 9:00 PM | 4:00 AM+1 day |
| 10:00 PM | 5:00 AM+1 day |
| 11:00 PM | 6:00 AM+1 day |
Best time to call or meet
Both sides are at work from 9:00 AM – 11:00 AM in Oklahoma City (4:00 PM – 6:00 PM in Vienna).
Daylight saving time and the difference
The difference changes during the year because Oklahoma City and Vienna switch clocks on different dates:
- Oct 20, 2026 – Oct 24, 2026: +7h
- Oct 24, 2026 – Nov 1, 2026: +6h
- Nov 1, 2026 – Mar 14, 2027: +7h
- Mar 14, 2027 – Mar 27, 2027: +6h
- Mar 27, 2027 – Oct 20, 2027: +7h
Distance
Oklahoma City and Vienna are 8,641 km (5,369 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Oklahoma City and Vienna?
Vienna is 7 hours ahead of Oklahoma City.
What time is it in Vienna when it is 9 AM in Oklahoma City?
When it is 9:00 AM in Oklahoma City, it is 4:00 PM in Vienna.
When is the best time to call Vienna from Oklahoma City?
Both sides are at work from 9:00 AM – 11:00 AM in Oklahoma City (4:00 PM – 6:00 PM in Vienna).
Does the time difference between Oklahoma City and Vienna change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.