Does it account for Daylight Saving Time?

Yes, our converter uses the IANA timezone database, which includes all current DST rules for every timezone in the world.

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All timezones are defined as offsets from UTC.

Can I compare multiple timezones at once?

Yes, you can add multiple cities or timezones and see the equivalent times side by side.

How many timezones are there in the world?

There are 38 distinct UTC offsets in use, ranging from UTC-12 to UTC+14. This includes half-hour (UTC+5:30 India, UTC+9:30 Australia) and 45-minute offsets (UTC+5:45 Nepal, UTC+8:45 Australia).

What is the International Date Line?

The International Date Line (IDL) runs roughly along the 180° meridian in the Pacific Ocean. When you cross it westward, you gain a day; crossing eastward, you lose a day.

Why do some timezones have 30 or 45 minute offsets?

Countries chose offsets that best matched their solar noon. India uses UTC+5:30 and Nepal uses UTC+5:45 because standard hourly offsets didn't align well with their geography.

Which country has the most timezones?

France has the most (12 timezones) due to overseas territories. Russia spans 11 timezones. The US has 6 (including Hawaii and Alaska).

Oslo to PDT

-9h

Oslo

CESTSOURCE

Norway · UTC+02:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

PDT

UTC-07:00☀ DST active

HH03

MM00

03:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Oslo

PDT

12:00 AM

3:00 PM-1

2:00 AM

5:00 PM-1

4:00 AM

7:00 PM-1

6:00 AM

9:00 PM-1

8:00 AM

11:00 PM-1

10:00 AM

1:00 AM

12:00 PM

3:00 AM

2:00 PM

5:00 AM

4:00 PM

7:00 AM

6:00 PM

9:00 AM

8:00 PM

11:00 AM

10:00 PM

1:00 PM

Green rows indicate typical business hours (9 AM - 5 PM)

CEST and PDT on the World Map

The map below highlights the CEST (Central European Time) and PDT (Pacific Daylight Time) timezone regions across the globe.

CEST Zone

→

PDT Zone

Explore all world timezones interactively →

CET – Central European Time

UTC+01:00

Central European Time (CET) is used across most of Western and Central Europe, 1 hour ahead of UTC.

Countries in CET

GermanyFranceItalySpainNetherlandsBelgiumAustriaSwitzerlandPolandCzech RepublicSwedenNorwayDenmarkHungaryCroatiaSerbiaSlovakiaSloveniaBosnia and HerzegovinaNorth MacedoniaAlbaniaMontenegroLuxembourgMaltaTunisiaAlgeriaNigeria

Major Cities in CET

ParisBerlinRomeMadridAmsterdamBrusselsViennaWarsawZurichStockholmOsloCopenhagenPragueBudapestBarcelonaMunichMilanLagos

Key Facts about CET

•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.

Daylight Saving:Yes – switches to CEST

Learn more about CET on Wikipedia

PDT – Pacific Daylight Time

UTC-07:00

Pacific Daylight Time (PDT) is the daylight saving offset on the US/Canada Pacific coast, 7 hours behind UTC.

Countries in PDT

United States (Pacific)Canada (British Columbia)Mexico (Baja California)

Major Cities in PDT

Los AngelesSan FranciscoSeattleVancouverPortland

Key Facts about PDT

•PDT aligns with MST at UTC-07:00.
•Tech company earnings calls often reference PDT/PST times.

Daylight Saving:Yes – switches to PST

Learn more about PDT on Wikipedia

About Oslo

Wikipedia

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.

Population:693,000

Metro:1.5 million

Business Hours:8:00 AM - 4:00 PM CET

Currency:NOK (kr)

Stock Exchange:OSE (Oslo Stock Exchange)

Key Landmarks

Oslo Opera HouseVigeland ParkAkershus FortressMunch MuseumRoyal Palace

Did You Know?

Oslo aims to be car-free by 2030.

Learn more about CEST timezone →

Comparing Time Zones: Oslo and PDT

Oslo runs on Central European Summer Time (CEST) at UTC+02:00, currently observing daylight saving time. PDT runs on Pacific Daylight Time (PDT) at UTC-07:00. That puts Oslo 9 hours behind PDT — a difference of -9h at the current offsets.

In practice, when it is 9:00 AM in Oslo it is 12:00 AM in PDT. Midnight in Oslo is 3:00 PM in PDT.Oslo observes daylight saving time while PDT does not, so the gap narrows or widens by an hour part of the year.

Oslo to PDT time conversion table

Oslo (CEST)	PDT (PDT)	Day
12:00 AM	3:00 PM	previous day
6:00 AM	9:00 PM	previous day
7:00 AM	10:00 PM	previous day
8:00 AM	11:00 PM	previous day
9:00 AM	12:00 AM	same day
12:00 PM	3:00 AM	same day
3:00 PM	6:00 AM	same day
5:00 PM	8:00 AM	same day
6:00 PM	9:00 AM	same day
9:00 PM	12:00 PM	same day

Why people convert Oslo to PDT time

Scheduling a call from Oslo to PDT: a 10:00 AM start in Oslo lands at 1:00 AM in PDT, so you can confirm the slot without doing the arithmetic yourself.
Handling a -9h gap: Oslo and PDT have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in PDT is 12:00 AM in Oslo.
Coordinating a Oslo-based team with PDT contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.

Always state the zone abbreviation, not just the hour. "3:00 PM CEST" is unambiguous; "3 PM" across a -9h gap is not.
With a -9h gap there is no shared 9-to-5 window, so alternate the early start: one week Oslo takes the early slot, the next week PDT does.
Oslo: Clocks fall back on Sun, Oct 25, 2026. Re-check this page after that date because the offset changes and so does the -9h gap.

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 PDT (Pacific Daylight Time)

Pacific Daylight Time (PDT) is observed from March to November on the Pacific coast. During PDT, the west coast is 7 hours behind UTC and only 2 hours behind the east coast's EDT.

Best time to call between Oslo and PDT

With a -9h offset there is no overlap inside a normal 9 AM – 5 PM day. PDT opens at 9:00 AM PDT, which is 12:00 AM in Oslo, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

Oslo and PDT have no shared working hours because of the -9h gap. Teams need to alternate early starts or rely on asynchronous handovers.

Oslo is 9 hours behind PDT (CEST UTC+02:00 → PDT UTC-07:00). There is no shared 9-to-5 window, so plan around an early or late slot. 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

PDT

☀ Currently in DST

Standard: UTC-08:00 · DST: UTC-07:00

Clocks fall back on Sun, Nov 1, 2026

Learn More About Time

Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between Oslo and PDT?

Oslo (CEST, UTC+02:00) is 9 hours behind PDT (PDT, UTC-07:00). The gap is currently -9h.

How do I convert Oslo time to PDT time?

Add -9h to Oslo local time. For example, 9:00 AM in Oslo is 12:00 AM in PDT.

What time is it in PDT right now?

PDT uses PDT at UTC-07:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -9h offset from Oslo.

What is the best time to call PDT from Oslo?

There is no shared working-hours window because of the -9h gap. The closest option is 1:00 PM in Oslo, which is 4:00 AM in PDT.

Which is behind, Oslo or PDT?

Oslo is 9 hours behind PDT. When it is 12:00 PM in Oslo it is 3:00 AM in PDT.

Do Oslo and PDT use different time zones?

Oslo (Norway) uses CEST at UTC+02:00, while PDT uses PDT at UTC-07:00. The IANA identifiers are Europe/Oslo and America/Los_Angeles.

Does daylight saving time affect the Oslo–PDT difference?

Yes at the moment: Oslo is on daylight saving time and PDT is not, so the -9h gap shifts by an hour when exactly one of them changes clocks.

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.

Is there a day difference between Oslo and PDT?

Not normally. The -9h gap only pushes the date over the previous day.

What is the time difference between Oslo and PDT?

PDT is -9h 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.