CET to Oslo
+1hCET
CETSOURCEOslo
CESTGreen rows indicate typical business hours (9 AM - 5 PM)
CET and CEST on the World Map
The map below highlights the CET (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.
CET to Oslo Time Difference – Complete Guide
CET runs on Central European Time (CET) at UTC+01:00. Oslo runs on Central European Summer Time (CEST) at UTC+02:00, also currently on daylight saving time. That puts CET 1 hour ahead of Oslo — a difference of +1h at the current offsets.
In practice, when it is 9:00 AM in CET it is 10:00 AM in Oslo. Midnight in CET is 1:00 AM in Oslo.Oslo observes daylight saving time while CET does not, so the gap narrows or widens by an hour part of the year.
CET to Oslo time conversion table
| CET (CET) | Oslo (CEST) | Day |
|---|---|---|
| 12:00 AM | 1:00 AM | same day |
| 6:00 AM | 7:00 AM | same day |
| 7:00 AM | 8:00 AM | same day |
| 8:00 AM | 9:00 AM | same day |
| 9:00 AM | 10:00 AM | same day |
| 12:00 PM | 1:00 PM | same day |
| 3:00 PM | 4:00 PM | same day |
| 5:00 PM | 6:00 PM | same day |
| 6:00 PM | 7:00 PM | same day |
| 9:00 PM | 10:00 PM | same day |
Why people convert CET to Oslo time
- Scheduling a call from CET to Oslo: a 10:00 AM start in CET lands at 11:00 AM in Oslo, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both CET and Oslo are inside the 9-to-5 working day between 9:00 AM and 4:00 PM CET time (10:00 AM–5:00 PM CEST). That is roughly 7 hours of usable overlap.
- Watching a live event or market open: CET viewers need 10:00 AM in Oslo to catch a 9:00 AM start there, and 11:00 PM if the event is anchored to CET.
- Always state the zone abbreviation, not just the hour. "3:00 PM CET" is unambiguous; "3 PM" across a +1h gap is not.
- Block 9:00 AM–4:00 PM CET as the recurring meeting window if you work primarily from CET and need Oslo colleagues present.
- Oslo: 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 CET and Oslo
Both CET and Oslo sit inside the 9 AM – 5 PM working day between 9:00 AM–4:00 PM CET, which is 10:00 AM–5:00 PM CEST. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
CET and Oslo share 7 hours of working-hours overlap (9:00 AM–4:00 PM CET), so scheduling a live meeting is straightforward.
CET is 1 hour ahead of Oslo (CET UTC+01:00 → CEST UTC+02:00). The shared working window is 9:00 AM–4:00 PM CET. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
CET
☀ Currently in DST
Standard: UTC+01:00 · DST: UTC+02:00
Clocks fall back on Sun, Oct 25, 2026
Oslo
☀ 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 CET and Oslo?
CET (CET, UTC+01:00) is 1 hour ahead of Oslo (CEST, UTC+02:00). The gap is currently +1h.
How do I convert CET time to Oslo time?
Add +1h to CET local time. For example, 9:00 AM in CET is 10:00 AM in Oslo.
What time is it in Oslo right now?
Oslo 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 +1h offset from CET.
What is the best time to call Oslo from CET?
Call between 9:00 AM and 4:00 PM CET — that maps to 10:00 AM–5:00 PM CEST and keeps both parties inside the working day.
Which is ahead, CET or Oslo?
CET is 1 hour ahead of Oslo. When it is 12:00 PM in CET it is 1:00 PM in Oslo.
Do CET and Oslo use different time zones?
CET uses CET at UTC+01:00, while Oslo (Norway) uses CEST at UTC+02:00. The IANA identifiers are Europe/Paris and Europe/Oslo.
Does daylight saving time affect the CET–Oslo difference?
Yes at the moment: Oslo is on daylight saving time and CET is not, so the +1h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share CET's time zone?
CET also covers Paris, Berlin, Rome, Madrid, Amsterdam, Brussels, Vienna, Warsaw and 10 more.
Which countries use CET, CET's zone?
CET is used in Germany, France, Italy, Spain, Netherlands, Belgium, Austria, Switzerland and 19 more.
Is there a day difference between CET and Oslo?
Not normally. The +1h gap only pushes the date over for late-evening times.
What is the time difference between CET and Oslo?
Oslo is +1h from CET.
What timezone is CET in?
CET operates on its local timezone.
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 are the business hours in Oslo?
Standard business hours in Oslo are 8:00 AM - 4:00 PM CET.
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 CET, what time is it in Oslo?
When it is 12:00 AM (midnight) in CET (CET), it is +1h later in Oslo (CET).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More CET time conversions
- cet to paris
- cet to cest
- cet to france
- cet to new york
- cet to london
- cet to dubai
- cet to tokyo
- cet to singapore
- cet to sydney
- cet to los angeles
- cet to delhi
- cet to mumbai
- cet to berlin
- cet to hong kong
- cet to toronto
- cet to kathmandu
- new york to cet
- london to cet
- dubai to cet
- tokyo to cet
- singapore to cet
- sydney to cet
- los angeles to cet
- paris to cet
- delhi to cet
- mumbai to cet
- berlin to cet
- hong kong to cet
- toronto to cet
- kathmandu to cet
See every conversion from CET →·See every conversion from Oslo →