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).

Jakarta to Oslo

-5h

Jakarta

WIBSOURCE

Indonesia · UTC+07:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Oslo

CEST

Norway · UTC+02:00☀ DST active

HH07

MM00

07:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Jakarta

Oslo

12:00 AM

7:00 PM-1

2:00 AM

9:00 PM-1

4:00 AM

11:00 PM-1

6:00 AM

1:00 AM

8:00 AM

3:00 AM

10:00 AM

5:00 AM

12:00 PM

7:00 AM

2:00 PM

9:00 AM

4:00 PM

11:00 AM

6:00 PM

1:00 PM

8:00 PM

3:00 PM

10:00 PM

5:00 PM

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

WIB and CEST on the World Map

The map below highlights the WIB (Western Indonesia Time) and CEST (Central European Time) timezone regions across the globe.

WIB Zone

→

CEST Zone

Explore all world timezones interactively →

WIB – Western Indonesia Time

UTC+07:00

Western Indonesia Time (WIB, UTC+07:00) covers Java, Sumatra and West Kalimantan, including Jakarta.

Countries in WIB

Indonesia (Java, Sumatra, West Kalimantan)

Major Cities in WIB

JakartaSurabayaBandungMedanPalembang

Key Facts about WIB

•Indonesia spans three time zones: WIB (UTC+07:00), WITA (UTC+08:00) and WIT (UTC+09:00).
•Indonesia has not observed daylight saving time since 1964.
•Jakarta is the largest city in Southeast Asia by population.
•WIB shares the UTC+07:00 offset with Indochina Time.

Daylight Saving:No – UTC+07:00 year-round

Learn more about WIB 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 Jakarta

Wikipedia

Jakarta operates on Western Indonesia Time (WIB), UTC+7. As Southeast Asia's largest economy, Jakarta's IDX is a key emerging market exchange.

Population:10.5 million

Metro:34.5 million

Business Hours:8:00 AM - 5:00 PM WIB

Currency:IDR (Rp)

Stock Exchange:IDX (Indonesia Stock Exchange)

Key Landmarks

MonasIstiqlal MosqueOld Town (Kota Tua)Taman MiniAncol Dreamland

Did You Know?

Indonesia has 3 time zones; Jakarta uses Western Indonesia Time (WIB).

Learn more about WIB timezone →

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: Jakarta and Oslo

Jakarta runs on Western Indonesia Time (WIB) at UTC+07:00. Oslo runs on Central European Summer Time (CEST) at UTC+02:00, also currently on daylight saving time. That puts Jakarta 5 hours behind Oslo — a difference of -5h at the current offsets.

In practice, when it is 9:00 AM in Jakarta it is 4:00 AM in Oslo. Midnight in Jakarta is 7:00 PM in Oslo.Oslo observes daylight saving time while Jakarta does not, so the gap narrows or widens by an hour part of the year.

Jakarta to Oslo time conversion table

Jakarta (WIB)	Oslo (CEST)	Day
12:00 AM	7:00 PM	previous day
6:00 AM	1:00 AM	same day
7:00 AM	2:00 AM	same day
8:00 AM	3:00 AM	same day
9:00 AM	4:00 AM	same day
12:00 PM	7:00 AM	same day
3:00 PM	10:00 AM	same day
5:00 PM	12:00 PM	same day
6:00 PM	1:00 PM	same day
9:00 PM	4:00 PM	same day

Why people convert Jakarta to Oslo time

Scheduling a call from Jakarta to Oslo: a 10:00 AM start in Jakarta lands at 5:00 AM in Oslo, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Jakarta and Oslo are inside the 9-to-5 working day between 2:00 PM and 5:00 PM WIB time (9:00 AM–12:00 PM CEST). That is roughly 3 hours of usable overlap.
Watching a live event or market open: Jakarta viewers need 4:00 AM in Oslo to catch a 9:00 AM start there, and 5:00 AM if the event is anchored to Jakarta.

Always state the zone abbreviation, not just the hour. "3:00 PM WIB" is unambiguous; "3 PM" across a -5h gap is not.
Block 2:00 PM–5:00 PM WIB as the recurring meeting window if you work primarily from Jakarta 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 WIB (Western Indonesia Time)

Western Indonesia Time (WIB, Waktu Indonesia Barat) is one of Indonesia's three time zones, fixed at UTC+07:00 all year. It covers Java, Sumatra, West Kalimantan and the provinces around them — home to Jakarta, the country's capital and largest city, plus Surabaya and Bandung. Indonesia does not observe daylight saving time, so WIB never shifts. WIB shares its UTC+07:00 offset with Indochina Time (ICT) and Christmas Island Time, but is a distinct zone covering the western half of the Indonesian archipelago. The country's other zones are WITA (UTC+08:00) in the centre and WIT (UTC+09:00) in the east.

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 Jakarta and Oslo

Both Jakarta and Oslo sit inside the 9 AM – 5 PM working day between 2:00 PM–5:00 PM WIB, which is 9:00 AM–12:00 PM CEST. That gives roughly 3 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

Jakarta and Oslo overlap for about 3 hours during the working day — enough for meetings if you avoid the edges of the window.

Jakarta is 5 hours behind Oslo (WIB UTC+07:00 → CEST UTC+02:00). The shared working window is 2:00 PM–5:00 PM WIB. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

Jakarta

Does not observe DST

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 Jakarta and Oslo?

Jakarta (WIB, UTC+07:00) is 5 hours behind Oslo (CEST, UTC+02:00). The gap is currently -5h.

How do I convert Jakarta time to Oslo time?

Add -5h to Jakarta local time. For example, 9:00 AM in Jakarta is 4:00 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 -5h offset from Jakarta.

What is the best time to call Oslo from Jakarta?

Call between 2:00 PM and 5:00 PM WIB — that maps to 9:00 AM–12:00 PM CEST and keeps both parties inside the working day.

Which is behind, Jakarta or Oslo?

Jakarta is 5 hours behind Oslo. When it is 12:00 PM in Jakarta it is 7:00 AM in Oslo.

Do Jakarta and Oslo use different time zones?

Jakarta (Indonesia) uses WIB at UTC+07:00, while Oslo (Norway) uses CEST at UTC+02:00. The IANA identifiers are Asia/Jakarta and Europe/Oslo.

Does daylight saving time affect the Jakarta–Oslo difference?

Yes at the moment: Oslo is on daylight saving time and Jakarta is not, so the -5h gap shifts by an hour when exactly one of them changes clocks.

Which other cities share Jakarta's time zone?

WIB also covers Jakarta, Surabaya, Bandung, Medan, Palembang.

Which countries use WIB, Jakarta's zone?

WIB is used in Indonesia (Java, Sumatra, West Kalimantan).

Is there a day difference between Jakarta and Oslo?

Not normally. The -5h gap only pushes the date over the previous day.

What is the time difference between Jakarta and Oslo?

Oslo is -5h from Jakarta.

What timezone is Jakarta in?

Jakarta operates on Western Indonesia Time (WIB), UTC+7. As Southeast Asia's largest economy, Jakarta's IDX is a key emerging market exchange.

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 Jakarta?

Standard business hours in Jakarta are 8:00 AM - 5:00 PM WIB.

What are the business hours in Oslo?

Standard business hours in Oslo are 8:00 AM - 4:00 PM CET.

What is the best time to schedule a call between Jakarta and Oslo?

The best overlap for a call is when both cities are in business hours. Jakarta works 8:00 AM - 5:00 PM WIB and Oslo works 8:00 AM - 4:00 PM CET (-5h difference). Try scheduling during the overlapping window for maximum convenience.

What currencies are used in Jakarta and Oslo?

Jakarta uses IDR (Rp) while Oslo uses NOK (kr). Check current exchange rates when planning travel or business between these cities.

How do Jakarta and Oslo compare in size?

Jakarta has a population of approximately 10.5 million (metro: 34.5 million), while Oslo has approximately 693,000 (metro: 1.5 million).

What are the major landmarks in Jakarta and Oslo?

Jakarta is known for Monas, Istiqlal Mosque, Old Town (Kota Tua). Oslo is famous for Oslo Opera House, Vigeland Park, Akershus Fortress.

Do Jakarta and Oslo have stock exchanges?

Yes. Jakarta has the IDX (Indonesia Stock Exchange) and Oslo has the OSE (Oslo Stock Exchange). The -5h time difference affects trading hour overlaps between these exchanges.