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 Anchorage

-15h

Indonesia

WIBSOURCE

UTC+07:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Anchorage

AKDT

USA · UTC-08:00☀ DST active

HH09

MM00

(previous day)21:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Indonesia

Anchorage

12:00 AM

9:00 AM-1

2:00 AM

11:00 AM-1

4:00 AM

1:00 PM-1

6:00 AM

3:00 PM-1

8:00 AM

5:00 PM-1

10:00 AM

7:00 PM-1

12:00 PM

9:00 PM-1

2:00 PM

11:00 PM-1

4:00 PM

1:00 AM

6:00 PM

3:00 AM

8:00 PM

5:00 AM

10:00 PM

7:00 AM

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

WIB and AKDT on the World Map

The map below highlights the WIB (Western Indonesia Time) and AKDT (Alaska Standard Time) timezone regions across the globe.

WIB Zone

→

AKDT 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

AKST – Alaska Standard Time

UTC-09:00

Alaska Standard Time (AKST) is the time zone for the state of Alaska, 9 hours behind UTC.

Countries in AKST

United States (Alaska)

Major Cities in AKST

AnchorageFairbanksJuneauSitkaWasilla

Key Facts about AKST

•Alaska is the largest US state by area but has only about 730,000 residents.
•Anchorage is the most populous city in AKST with about 290,000 people.
•The Aleutian Islands use HAST instead of AKST.

Daylight Saving:Yes – switches to AKDT

Learn more about AKST on Wikipedia

About Anchorage

Wikipedia

Anchorage operates on Alaska Time (AKST/AKDT), UTC-9. As a global air cargo hub, Anchorage connects Asian and American markets via polar routes.

Population:287,000

Metro:398,000

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

Currency:USD ($)

Key Landmarks

Anchorage MuseumTony Knowles Coastal TrailFlattop MountainAlaska Wildlife Conservation CenterShip Creek

Did You Know?

Moose occasionally wander through the city streets.

Learn more about AKDT timezone →

Indonesia vs Anchorage: Offsets, DST and Best Call Times

Indonesia runs on Western Indonesia Time (WIB) at UTC+07:00. Anchorage runs on Alaska Daylight Time (AKDT) at UTC-08:00, also currently on daylight saving time. That puts Indonesia 15 hours behind Anchorage — a difference of -15h at the current offsets.

In practice, when it is 9:00 AM in Indonesia it is 6:00 PM in Anchorage on the previous day. Midnight in Indonesia is 9:00 AM in Anchorage.Anchorage observes daylight saving time while Indonesia does not, so the gap narrows or widens by an hour part of the year.

Indonesia to Anchorage time conversion table

Indonesia (WIB)	Anchorage (AKDT)	Day
12:00 AM	9:00 AM	previous day
6:00 AM	3:00 PM	previous day
7:00 AM	4:00 PM	previous day
8:00 AM	5:00 PM	previous day
9:00 AM	6:00 PM	previous day
12:00 PM	9:00 PM	previous day
3:00 PM	12:00 AM	same day
5:00 PM	2:00 AM	same day
6:00 PM	3:00 AM	same day
9:00 PM	6:00 AM	same day

Why people convert Indonesia to Anchorage time

Scheduling a call from Indonesia to Anchorage: a 10:00 AM start in Indonesia lands at 7:00 PM in Anchorage the previous day, so you can confirm the slot without doing the arithmetic yourself.
Handling a -15h gap: Indonesia and Anchorage 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 Anchorage is 6:00 PM in Indonesia.
Booking travel or deliveries: tracking Anchorage local time against Indonesia keeps pickup windows and arrival estimates honest across the -15h offset.

Always state the zone abbreviation, not just the hour. "3:00 PM WIB" is unambiguous; "3 PM" across a -15h gap is not.
With a -15h gap there is no shared 9-to-5 window, so alternate the early start: one week Indonesia takes the early slot, the next week Anchorage does.
Anchorage: Clocks fall back on Sun, Nov 1, 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 AKST (Alaska Standard Time)

Alaska Standard Time (AKST) is used in nearly all of Alaska. Due to Alaska's vast geographic size, the Aleutian Islands use Hawaii-Aleutian Standard Time instead. During summer months, Alaska switches to Alaska Daylight Time (AKDT, UTC-08:00).

Best time to call between Indonesia and Anchorage

With a -15h offset there is no overlap inside a normal 9 AM – 5 PM day. Anchorage opens at 9:00 AM AKDT, which is 6:00 PM in Indonesia, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

Indonesia and Anchorage have no shared working hours because of the -15h gap. Teams need to alternate early starts or rely on asynchronous handovers.

Indonesia is 15 hours behind Anchorage (WIB UTC+07:00 → AKDT UTC-08:00). 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

Indonesia

Does not observe DST

Anchorage

☀ Currently in DST

Standard: UTC-09:00 · DST: UTC-08:00

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 Indonesia and Anchorage?

Indonesia (WIB, UTC+07:00) is 15 hours behind Anchorage (AKDT, UTC-08:00). The gap is currently -15h.

How do I convert Indonesia time to Anchorage time?

Add -15h to Indonesia local time. For example, 9:00 AM in Indonesia is 6:00 PM in Anchorage (previous day).

What time is it in Anchorage right now?

Anchorage uses AKDT at UTC-08:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -15h offset from Indonesia.

What is the best time to call Anchorage from Indonesia?

There is no shared working-hours window because of the -15h gap. The closest option is 1:00 PM in Indonesia, which is 10:00 PM in Anchorage.

Which is behind, Indonesia or Anchorage?

Indonesia is 15 hours behind Anchorage. When it is 12:00 PM in Indonesia it is 9:00 PM in Anchorage.

Do Indonesia and Anchorage use different time zones?

Indonesia (Indonesia) uses WIB at UTC+07:00, while Anchorage (USA) uses AKDT at UTC-08:00. The IANA identifiers are Asia/Jakarta and America/Anchorage.

Does daylight saving time affect the Indonesia–Anchorage difference?

Yes at the moment: Anchorage is on daylight saving time and Indonesia is not, so the -15h gap shifts by an hour when exactly one of them changes clocks.