Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

GMT to Oslo

+2h

GMT

GMTSOURCE

UTC+01:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Oslo

CEST

Norway · UTC+02:00☀ DST active

HH02

MM00

14:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

GMT

Oslo

12:00 AM

1:00 AM

2:00 AM

3:00 AM

4:00 AM

5:00 AM

6:00 AM

7:00 AM

8:00 AM

9:00 AM

10:00 AM

11:00 AM

12:00 PM

1:00 PM

2:00 PM

3:00 PM

4:00 PM

5:00 PM

6:00 PM

7:00 PM

8:00 PM

9:00 PM

10:00 PM

11:00 PM

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

GMT and CEST on the World Map

The map below highlights the GMT (Greenwich Mean Time) and CEST (Central European Time) timezone regions across the globe.

GMT Zone

→

CEST Zone

Explore all world timezones interactively →

GMT – Greenwich Mean Time

UTC+00:00

Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.

Countries in GMT

United KingdomIrelandIcelandPortugal (mainland)GhanaSenegalMaliMauritaniaGambiaGuineaSierra LeoneLiberiaIvory CoastBurkina FasoMorocco (historically)

Major Cities in GMT

LondonDublinLisbonAccraReykjavikEdinburghCasablancaDakarBamakoAbidjanConakryFreetownMonrovia

Key Facts about GMT

•GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
•The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
•GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
•Iceland uses GMT year-round and never observes daylight saving time.
•The UK switches from GMT to BST (British Summer Time) in late March each year.

Daylight Saving:Yes – switches to BST

Learn more about GMT on Wikipedia

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

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: GMT and Oslo

GMT runs on Greenwich Mean Time (GMT) at UTC+00:00. Oslo runs on Central European Summer Time (CEST) at UTC+02:00, also currently on daylight saving time. That puts GMT 2 hours ahead of Oslo — a difference of +2h at the current offsets.

In practice, when it is 9:00 AM in GMT it is 11:00 AM in Oslo. Midnight in GMT is 2:00 AM in Oslo.Oslo observes daylight saving time while GMT does not, so the gap narrows or widens by an hour part of the year.

GMT to Oslo time conversion table

GMT (GMT)	Oslo (CEST)	Day
12:00 AM	2:00 AM	same day
6:00 AM	8:00 AM	same day
7:00 AM	9:00 AM	same day
8:00 AM	10:00 AM	same day
9:00 AM	11:00 AM	same day
12:00 PM	2:00 PM	same day
3:00 PM	5:00 PM	same day
5:00 PM	7:00 PM	same day
6:00 PM	8:00 PM	same day
9:00 PM	11:00 PM	same day

Why people convert GMT to Oslo time

Scheduling a call from GMT to Oslo: a 10:00 AM start in GMT lands at 12:00 PM in Oslo, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both GMT and Oslo are inside the 9-to-5 working day between 9:00 AM and 3:00 PM GMT time (11:00 AM–5:00 PM CEST). That is roughly 6 hours of usable overlap.
Booking travel or deliveries: tracking Oslo local time against GMT keeps pickup windows and arrival estimates honest across the +2h offset.

Always state the zone abbreviation, not just the hour. "3:00 PM GMT" is unambiguous; "3 PM" across a +2h gap is not.
Block 9:00 AM–3:00 PM GMT as the recurring meeting window if you work primarily from GMT 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 GMT (Greenwich Mean Time)

Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.

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 GMT and Oslo

Both GMT and Oslo sit inside the 9 AM – 5 PM working day between 9:00 AM–3:00 PM GMT, which is 11:00 AM–5:00 PM CEST. That gives roughly 6 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

GMT and Oslo share 6 hours of working-hours overlap (9:00 AM–3:00 PM GMT), so scheduling a live meeting is straightforward.

GMT is 2 hours ahead of Oslo (GMT UTC+00:00 → CEST UTC+02:00). The shared working window is 9:00 AM–3:00 PM GMT. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

GMT

☀ Currently in DST

Standard: UTC+00:00 · DST: UTC+01:00

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:

⏳

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 GMT and Oslo?

GMT (GMT, UTC+00:00) is 2 hours ahead of Oslo (CEST, UTC+02:00). The gap is currently +2h.

How do I convert GMT time to Oslo time?

Add +2h to GMT local time. For example, 9:00 AM in GMT is 11:00 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 +2h offset from GMT.

What is the best time to call Oslo from GMT?

Call between 9:00 AM and 3:00 PM GMT — that maps to 11:00 AM–5:00 PM CEST and keeps both parties inside the working day.

Which is ahead, GMT or Oslo?

GMT is 2 hours ahead of Oslo. When it is 12:00 PM in GMT it is 2:00 PM in Oslo.

Do GMT and Oslo use different time zones?

GMT uses GMT at UTC+00:00, while Oslo (Norway) uses CEST at UTC+02:00. The IANA identifiers are Europe/London and Europe/Oslo.

Does daylight saving time affect the GMT–Oslo difference?

Yes at the moment: Oslo is on daylight saving time and GMT is not, so the +2h gap shifts by an hour when exactly one of them changes clocks.

Which other cities share GMT's time zone?

GMT also covers London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar and 5 more.

Which countries use GMT, GMT's zone?

GMT is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, Mali, Mauritania and 7 more.

Is there a day difference between GMT and Oslo?

Not normally. The +2h gap only pushes the date over for late-evening times.

What is the time difference between GMT and Oslo?

Oslo is +2h from GMT.

What timezone is GMT in?

GMT 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 GMT (Greenwich Mean Time)?

GMT is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, and 9 more countries.

Does GMT observe daylight saving time?

Yes, GMT switches to BST during summer months.

What are some interesting facts about GMT?

GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.