What timezone does Oslo use?

Oslo observes Central European Time (CET, UTC+1) in winter and Central European Summer Time (CEST, UTC+2) during summer. Daylight Saving Time begins on the last Sunday in March and ends on the last Sunday in October.

Is this clock accurate?

The clock reads your device's system clock and converts it to Europe/Oslo time using the IANA timezone database built into your browser. Accuracy depends on your device being synchronized via NTP, which most modern devices do automatically.

Does Norway observe Daylight Saving Time?

Yes. Norway (Oslo) moves clocks forward 1 hour in late March (switching from CET UTC+1 to CEST UTC+2) and back in late October (reverting to CET UTC+1).

What are Oslo business hours?

Standard Norwegian business hours are typically 08:00 to 16:00 CET/CEST, Monday through Friday. The Oslo Stock Exchange (Oslo Bors) trading session runs 09:00–16:20 CET/CEST on weekdays.

What is the IANA timezone identifier for Oslo?

The IANA identifier for Oslo time is Europe/Oslo. This is used by browsers, operating systems, and programming languages to look up current and historical timezone rules for Norway.

How far ahead or behind is Oslo from other major cities?

Oslo (CET, UTC+1) is 1 hour ahead of UTC, 6 hours ahead of New York (EST, UTC-5), and 9 hours behind Tokyo (JST, UTC+9). During summer CEST (UTC+2), add 1 extra hour to each. These figures may vary when other cities change their DST.

Current Time in Oslo

See the live current time and date in Oslo, Norway (CET/CEST) with auto-refresh and a side-by-side comparison with your local time.

Oslo, Norway

--:--:--

CET UTC+1

Observes DST — CET (UTC+1) winter, CEST (UTC+2) summer

Your Local Time

--:--:--

Detecting timezone...

Calculating time difference...

World Clock Comparison

Oslo Timezone Quick Reference

Timezone Name CET (winter) / CEST (summer)

UTC Offset UTC+1 (CET) / UTC+2 (CEST)

Daylight Saving Time Last Sun in March to last Sun in October

Oslo Bors Trading Hours 09:00–16:20 CET/CEST

IANA Identifier Europe/Oslo

Summary

This tool displays the live current time in Oslo, Norway using the Europe/Oslo timezone. Oslo observes Central European Time (CET, UTC+1) in winter and Central European Summer Time (CEST, UTC+2) during Daylight Saving Time. The clock updates every second and shows your local time alongside Oslo time for an instant comparison.

How it works

The tool reads your device clock using the JavaScript Date API.
It converts the current moment to the Europe/Oslo timezone using Intl.DateTimeFormat with the IANA identifier.
The display refreshes every second so the clock stays live and accurate.
Oslo observes DST — CET (UTC+1) in winter, CEST (UTC+2) in summer from late March to late October.
Your local time and timezone are displayed alongside Oslo time for easy comparison.
A world clock panel shows the same moment in several major cities.

Use cases

Scheduling calls or meetings with colleagues or clients in Oslo.
Checking whether Oslo business hours (typically 08:00–16:00 CET/CEST) are currently active.
Converting your local time to Norwegian time when coordinating with Oslo-based teams.
Travelers planning arrivals, departures, or hotel check-ins in Norway.
Remote teams collaborating across time zones with Norway-based counterparts.
Investors monitoring the Oslo Stock Exchange (Oslo Bors) trading hours.
Students and professionals following Norwegian news or live streams.
Checking whether Norway is currently on CET (winter) or CEST (summer) time.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu