Oslo to Vienna
+0hOslo
CESTSOURCEVienna
CESTGreen rows indicate typical business hours (9 AM - 5 PM)
CEST and CEST on the World Map
The map below highlights the CEST (Central European Time) and CEST (Central European Time) timezone regions across the globe.
CET – Central European Time
UTC+01:00Central European Time (CET) is used across most of Western and Central Europe, 1 hour ahead of UTC.
- •CET covers more European countries than any other time zone.
- •Spain uses CET despite being geographically aligned with GMT/WET.
- •The Frankfurt Stock Exchange, Euronext (Amsterdam/Paris), and Borsa Italiana operate on CET.
- •Over 500 million people live in the CET time zone.
- •France moved to CET during the German occupation in WWII and never switched back.
CET – Central European Time
UTC+01:00Central European Time (CET) is used across most of Western and Central Europe, 1 hour ahead of UTC.
- •CET covers more European countries than any other time zone.
- •Spain uses CET despite being geographically aligned with GMT/WET.
- •The Frankfurt Stock Exchange, Euronext (Amsterdam/Paris), and Borsa Italiana operate on CET.
- •Over 500 million people live in the CET time zone.
- •France moved to CET during the German occupation in WWII and never switched back.
About Oslo
WikipediaOslo operates on Central European Time (CET/CEST). As home to the world's largest sovereign wealth fund and major oil firms, Oslo influences global energy markets.
Oslo aims to be car-free by 2030.
About Vienna
WikipediaVienna operates on Central European Time (CET/CEST). As a major EU hub and headquarters for international organizations, Vienna coordinates Central European business.
Vienna has more than 50 theaters and opera houses.
Understanding the +0h Gap: Oslo vs Vienna
Oslo runs on Central European Summer Time (CEST) at UTC+02:00, currently observing daylight saving time. Vienna runs on Central European Summer Time (CEST) at UTC+02:00, also currently on daylight saving time. That puts Oslo no time difference Vienna — a difference of +0h at the current offsets.
In practice, when it is 9:00 AM in Oslo it is 9:00 AM in Vienna. Midnight in Oslo is 12:00 AM in Vienna. Because both zones shift for daylight saving, the gap between them only changes during the few weeks each year when their transition dates differ.
Oslo to Vienna time conversion table
| Oslo (CEST) | Vienna (CEST) | Day |
|---|---|---|
| 12:00 AM | 12:00 AM | same day |
| 6:00 AM | 6:00 AM | same day |
| 7:00 AM | 7:00 AM | same day |
| 8:00 AM | 8:00 AM | same day |
| 9:00 AM | 9:00 AM | same day |
| 12:00 PM | 12:00 PM | same day |
| 3:00 PM | 3:00 PM | same day |
| 5:00 PM | 5:00 PM | same day |
| 6:00 PM | 6:00 PM | same day |
| 9:00 PM | 9:00 PM | same day |
Why people convert Oslo to Vienna time
- Scheduling a call from Oslo to Vienna: a 10:00 AM start in Oslo lands at 10:00 AM in Vienna, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Oslo and Vienna are inside the 9-to-5 working day between 9:00 AM and 5:00 PM CEST time (9:00 AM–5:00 PM CEST). That is roughly 8 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in Oslo is 8:00 PM in Vienna makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM CEST" is unambiguous; "3 PM" across a +0h gap is not.
- Block 9:00 AM–5:00 PM CEST as the recurring meeting window if you work primarily from Oslo and need Vienna colleagues present.
- Oslo: Clocks fall back on Sun, Oct 25, 2026. Re-check this page after that date because the offset changes and so does the +0h gap.
- Vienna: Clocks fall back on Sun, Oct 25, 2026. Any meeting series spanning that date will shift by an hour in local time.
About CET (Central European Time)
Central European Time (CET) is the standard time zone for most of Europe, covering over 30 countries from Spain to Poland, and from Norway to Italy. CET is 1 hour ahead of GMT and is used by the European Union's most populous nations. During summer, most CET countries switch to Central European Summer Time (CEST, UTC+02:00). Major European financial markets in Frankfurt, Paris, and Amsterdam operate on CET.
About CET (Central European Time)
Central European Time (CET) is the standard time zone for most of Europe, covering over 30 countries from Spain to Poland, and from Norway to Italy. CET is 1 hour ahead of GMT and is used by the European Union's most populous nations. During summer, most CET countries switch to Central European Summer Time (CEST, UTC+02:00). Major European financial markets in Frankfurt, Paris, and Amsterdam operate on CET.
Best time to call between Oslo and Vienna
Both Oslo and Vienna sit inside the 9 AM – 5 PM working day between 9:00 AM–5:00 PM CEST, which is 9:00 AM–5:00 PM CEST. That gives roughly 8 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Oslo and Vienna share 8 hours of working-hours overlap (9:00 AM–5:00 PM CEST), so scheduling a live meeting is straightforward.
Oslo is no time difference Vienna (CEST UTC+02:00 → CEST UTC+02:00). The shared working window is 9:00 AM–5:00 PM CEST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Oslo
☀ Currently in DST
Standard: UTC+01:00 · DST: UTC+02:00
Clocks fall back on Sun, Oct 25, 2026
Vienna
☀ Currently in DST
Standard: UTC+01:00 · DST: UTC+02:00
Clocks fall back on Sun, Oct 25, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Oslo and Vienna?
Oslo (CEST, UTC+02:00) is no time difference Vienna (CEST, UTC+02:00). The gap is currently +0h.
How do I convert Oslo time to Vienna time?
Add +0h to Oslo local time. For example, 9:00 AM in Oslo is 9:00 AM in Vienna.
What time is it in Vienna right now?
Vienna uses CEST at UTC+02:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +0h offset from Oslo.
What is the best time to call Vienna from Oslo?
Call between 9:00 AM and 5:00 PM CEST — that maps to 9:00 AM–5:00 PM CEST and keeps both parties inside the working day.
Which is ahead, Oslo or Vienna?
Oslo and Vienna are currently on the same clock.
Do Oslo and Vienna use different time zones?
Oslo (Norway) uses CEST at UTC+02:00, while Vienna (Austria) uses CEST at UTC+02:00. The IANA identifiers are Europe/Oslo and Europe/Vienna.
Does daylight saving time affect the Oslo–Vienna difference?
Both zones observe DST, so the difference stays at +0h for most of the year and only changes during the weeks when their transition dates do not line up.
Which other cities share Oslo's time zone?
CEST also covers Paris, Berlin, Rome, Madrid, Amsterdam, Brussels, Vienna, Warsaw and 10 more.
Which countries use CEST, Oslo's zone?
CEST is used in Germany, France, Italy, Spain, Netherlands, Belgium, Austria, Switzerland and 19 more.
What is the time difference between Oslo and Vienna?
Vienna is +0h from Oslo.
What timezone is Oslo in?
Oslo operates on Central European Time (CET/CEST). As home to the world's largest sovereign wealth fund and major oil firms, Oslo influences global energy markets.
What timezone is Vienna in?
Vienna operates on Central European Time (CET/CEST). As a major EU hub and headquarters for international organizations, Vienna coordinates Central European business.
What are the business hours in Oslo?
Standard business hours in Oslo are 8:00 AM - 4:00 PM CET.
What are the business hours in Vienna?
Standard business hours in Vienna are 8:00 AM - 5:00 PM CET.
What is the best time to schedule a call between Oslo and Vienna?
The best overlap for a call is when both cities are in business hours. Oslo works 8:00 AM - 4:00 PM CET and Vienna works 8:00 AM - 5:00 PM CET (+0h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Oslo and Vienna?
Oslo uses NOK (kr) while Vienna uses EUR (€). Check current exchange rates when planning travel or business between these cities.
How do Oslo and Vienna compare in size?
Oslo has a population of approximately 693,000 (metro: 1.5 million), while Vienna has approximately 1.9 million (metro: 2.9 million).
What are the major landmarks in Oslo and Vienna?
Oslo is known for Oslo Opera House, Vigeland Park, Akershus Fortress. Vienna is famous for Schönbrunn Palace, St. Stephen's Cathedral, Belvedere Palace.
Do Oslo and Vienna have stock exchanges?
Yes. Oslo has the OSE (Oslo Stock Exchange) and Vienna has the Wiener Börse. The +0h time difference affects trading hour overlaps between these exchanges.
Which countries use CET (Central European Time)?
CET is used in Germany, France, Italy, Spain, Netherlands, Belgium, and 21 more countries.
Does CET observe daylight saving time?
Yes, CET switches to CEST during summer months.
What are some interesting facts about CET?
CET covers more European countries than any other time zone. Spain uses CET despite being geographically aligned with GMT/WET.
Which cities are in the CET timezone?
Major cities in the CET timezone include Paris, Berlin, Rome, Madrid, Amsterdam, Brussels, Vienna, Warsaw.
What is the UTC offset for CET?
Central European Time (CET) is at UTC+01:00. During daylight saving time, it shifts to CEST.
What should I know about the CET timezone?
CET covers more European countries than any other time zone. Spain uses CET despite being geographically aligned with GMT/WET.
When is it midnight in Oslo, what time is it in Vienna?
When it is 12:00 AM (midnight) in Oslo (CET), it is +0h later in Vienna (CET).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More Oslo time conversions
- oslo to norway
- oslo to london
- oslo to dublin
- oslo to paris
- oslo to berlin
- oslo to amsterdam
- oslo to madrid
- oslo to rome
- oslo to zurich
- oslo to stockholm
- oslo to moscow
- oslo to istanbul
- oslo to lisbon
- oslo to new york
- oslo to dubai
- oslo to tokyo
- oslo to singapore
- oslo to sydney
- oslo to los angeles
- oslo to delhi
- oslo to mumbai
- oslo to hong kong
- oslo to toronto
- oslo to kathmandu
- new york to oslo
- london to oslo
- dubai to oslo
- tokyo to oslo
- singapore to oslo
- sydney to oslo
- los angeles to oslo
- paris to oslo
- delhi to oslo
- mumbai to oslo
- berlin to oslo
- hong kong to oslo
See every conversion from Oslo →·See every conversion from Vienna →