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).

Indonesia to Bucharest

-4h

Indonesia

WIBSOURCE

UTC+07:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Bucharest

EEST

Romania · UTC+03:00☀ DST active

HH08

MM00

08:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Indonesia

Bucharest

12:00 AM

8:00 PM-1

2:00 AM

10:00 PM-1

4:00 AM

12:00 AM

6:00 AM

2:00 AM

8:00 AM

4:00 AM

10:00 AM

6:00 AM

12:00 PM

8:00 AM

2:00 PM

10:00 AM

4:00 PM

12:00 PM

6:00 PM

2:00 PM

8:00 PM

4:00 PM

10:00 PM

6:00 PM

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

WIB and EEST on the World Map

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

WIB Zone

→

EEST 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

EET – Eastern European Time

UTC+02:00

Eastern European Time (EET) is used in Eastern Europe, the Middle East, and northeastern Africa, 2 hours ahead of UTC.

Countries in EET

FinlandGreeceRomaniaBulgariaUkraineEgyptIsraelLebanonJordanLithuaniaLatviaEstoniaMoldovaLibyaSyriaPalestineCyprus

Major Cities in EET

CairoAthensHelsinkiBucharestKyivSofiaJerusalemTel AvivBeirutVilniusRigaTallinn

Key Facts about EET

•EET covers countries across three continents: Europe, Asia, and Africa.
•Cairo is the most populous city in the EET zone.
•Turkey used to be on EET but permanently moved to UTC+03:00 in 2016.
•Finland, the Baltic states, and Greece all use EET.

Daylight Saving:Yes – switches to EEST

Learn more about EET on Wikipedia

Comparing Time Zones: Indonesia and Bucharest

Indonesia runs on Western Indonesia Time (WIB) at UTC+07:00. Bucharest runs on Eastern European Summer Time (EEST) at UTC+03:00, also currently on daylight saving time. That puts Indonesia 4 hours behind Bucharest — a difference of -4h at the current offsets.

In practice, when it is 9:00 AM in Indonesia it is 5:00 AM in Bucharest. Midnight in Indonesia is 8:00 PM in Bucharest.Bucharest observes daylight saving time while Indonesia does not, so the gap narrows or widens by an hour part of the year.

Indonesia to Bucharest time conversion table

Indonesia (WIB)	Bucharest (EEST)	Day
12:00 AM	8:00 PM	previous day
6:00 AM	2:00 AM	same day
7:00 AM	3:00 AM	same day
8:00 AM	4:00 AM	same day
9:00 AM	5:00 AM	same day
12:00 PM	8:00 AM	same day
3:00 PM	11:00 AM	same day
5:00 PM	1:00 PM	same day
6:00 PM	2:00 PM	same day
9:00 PM	5:00 PM	same day

Why people convert Indonesia to Bucharest time

Scheduling a call from Indonesia to Bucharest: a 10:00 AM start in Indonesia lands at 6:00 AM in Bucharest, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Indonesia and Bucharest are inside the 9-to-5 working day between 1:00 PM and 5:00 PM WIB time (9:00 AM–1:00 PM EEST). That is roughly 4 hours of usable overlap.
Keeping family and friends in sync: knowing that 8:00 PM in Indonesia is 4:00 PM in Bucharest makes it easy to avoid calling at 3 AM.

Always state the zone abbreviation, not just the hour. "3:00 PM WIB" is unambiguous; "3 PM" across a -4h gap is not.
Block 1:00 PM–5:00 PM WIB as the recurring meeting window if you work primarily from Indonesia and need Bucharest colleagues present.
Bucharest: 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 EET (Eastern European Time)

Eastern European Time (EET) covers a wide geographical area including Eastern Europe (Finland, Greece, Romania, Bulgaria, Ukraine), the Middle East (Israel, Lebanon, Jordan), and northeastern Africa (Egypt, Libya). During summer, most EET countries switch to Eastern European Summer Time (EEST, UTC+03:00). Turkey permanently moved to UTC+03:00 in 2016, effectively leaving EET.

Best time to call between Indonesia and Bucharest

Both Indonesia and Bucharest sit inside the 9 AM – 5 PM working day between 1:00 PM–5:00 PM WIB, which is 9:00 AM–1:00 PM EEST. That gives roughly 4 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

Indonesia and Bucharest overlap for about 4 hours during the working day — enough for meetings if you avoid the edges of the window.

Indonesia is 4 hours behind Bucharest (WIB UTC+07:00 → EEST UTC+03:00). The shared working window is 1:00 PM–5:00 PM WIB. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

Indonesia

Does not observe DST

Bucharest

☀ Currently in DST

Standard: UTC+02:00 · DST: UTC+03:00

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 Indonesia and Bucharest?

Indonesia (WIB, UTC+07:00) is 4 hours behind Bucharest (EEST, UTC+03:00). The gap is currently -4h.

How do I convert Indonesia time to Bucharest time?

Add -4h to Indonesia local time. For example, 9:00 AM in Indonesia is 5:00 AM in Bucharest.

What time is it in Bucharest right now?

Bucharest uses EEST at UTC+03:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -4h offset from Indonesia.

What is the best time to call Bucharest from Indonesia?

Call between 1:00 PM and 5:00 PM WIB — that maps to 9:00 AM–1:00 PM EEST and keeps both parties inside the working day.

Which is behind, Indonesia or Bucharest?

Indonesia is 4 hours behind Bucharest. When it is 12:00 PM in Indonesia it is 8:00 AM in Bucharest.

Do Indonesia and Bucharest use different time zones?

Indonesia (Indonesia) uses WIB at UTC+07:00, while Bucharest (Romania) uses EEST at UTC+03:00. The IANA identifiers are Asia/Jakarta and Europe/Bucharest.

Does daylight saving time affect the Indonesia–Bucharest difference?

Yes at the moment: Bucharest is on daylight saving time and Indonesia is not, so the -4h gap shifts by an hour when exactly one of them changes clocks.