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 HKT

+1h

Indonesia

WIBSOURCE

UTC+07:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

HKT

UTC+08:00

HH01

MM00

13:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Indonesia

HKT

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)

WIB and HKT on the World Map

The map below highlights the WIB (Western Indonesia Time) and HKT (Hong Kong Time) timezone regions across the globe.

WIB Zone

→

HKT 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

HKT – Hong Kong Time

UTC+08:00

Hong Kong Time (HKT, UTC+08:00) is the time zone for Hong Kong, 8 hours ahead of UTC.

Countries in HKT

Hong Kong SAR

Major Cities in HKT

Hong KongKowloonTsuen WanSha Tin

Key Facts about HKT

•Hong Kong does not observe daylight saving time and has kept UTC+08:00 since 1979.
•HKT shares its offset with China Standard Time, Singapore Time and Philippine Time.
•The Hong Kong Stock Exchange opens at 09:30 HKT.
•Hong Kong Time does not change with the seasons, so its gap to other zones is fixed.

Daylight Saving:No – UTC+08:00 year-round

Learn more about HKT on Wikipedia

Comparing Time Zones: Indonesia and HKT

Indonesia runs on Western Indonesia Time (WIB) at UTC+07:00. HKT runs on Hong Kong Time (HKT) at UTC+08:00. That puts Indonesia 1 hour ahead of HKT — a difference of +1h at the current offsets.

In practice, when it is 9:00 AM in Indonesia it is 10:00 AM in HKT. Midnight in Indonesia is 1:00 AM in HKT. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Indonesia to HKT time conversion table

Indonesia (WIB)	HKT (HKT)	Day
12:00 AM	1:00 AM	same day
6:00 AM	7:00 AM	same day
7:00 AM	8:00 AM	same day
8:00 AM	9:00 AM	same day
9:00 AM	10:00 AM	same day
12:00 PM	1:00 PM	same day
3:00 PM	4:00 PM	same day
5:00 PM	6:00 PM	same day
6:00 PM	7:00 PM	same day
9:00 PM	10:00 PM	same day

Why people convert Indonesia to HKT time

Scheduling a call from Indonesia to HKT: a 10:00 AM start in Indonesia lands at 11:00 AM in HKT, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Indonesia and HKT are inside the 9-to-5 working day between 9:00 AM and 4:00 PM WIB time (10:00 AM–5:00 PM HKT). That is roughly 7 hours of usable overlap.
Watching a live event or market open: Indonesia viewers need 10:00 AM in HKT to catch a 9:00 AM start there, and 11:00 PM if the event is anchored to Indonesia.

Always state the zone abbreviation, not just the hour. "3:00 PM WIB" is unambiguous; "3 PM" across a +1h gap is not.
Block 9:00 AM–4:00 PM WIB as the recurring meeting window if you work primarily from Indonesia and need HKT colleagues present.

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 HKT (Hong Kong Time)

Hong Kong Time (HKT) is fixed at UTC+08:00 all year and does not observe daylight saving time. Hong Kong last used summer time in 1979 and has kept a single offset since. HKT shares the UTC+08:00 offset with China Standard Time, Singapore Time, Malaysian Time, Philippine Time and Australian Western Standard Time, but is listed separately because Hong Kong maintains its own timekeeping authority. As a major financial centre, Hong Kong's trading hours set the rhythm for markets across Asia, opening at 09:30 HKT which is 01:30 in London and 20:30 the previous evening in New York.

Best time to call between Indonesia and HKT

Both Indonesia and HKT sit inside the 9 AM – 5 PM working day between 9:00 AM–4:00 PM WIB, which is 10:00 AM–5:00 PM HKT. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

Indonesia and HKT share 7 hours of working-hours overlap (9:00 AM–4:00 PM WIB), so scheduling a live meeting is straightforward.

Indonesia is 1 hour ahead of HKT (WIB UTC+07:00 → HKT UTC+08:00). The shared working window is 9:00 AM–4:00 PM WIB. Remember to re-check around daylight-saving transitions.

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 HKT?

Indonesia (WIB, UTC+07:00) is 1 hour ahead of HKT (HKT, UTC+08:00). The gap is currently +1h.

How do I convert Indonesia time to HKT time?

Add +1h to Indonesia local time. For example, 9:00 AM in Indonesia is 10:00 AM in HKT.

What time is it in HKT right now?

HKT uses HKT at UTC+08:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +1h offset from Indonesia.

What is the best time to call HKT from Indonesia?

Call between 9:00 AM and 4:00 PM WIB — that maps to 10:00 AM–5:00 PM HKT and keeps both parties inside the working day.

Which is ahead, Indonesia or HKT?

Indonesia is 1 hour ahead of HKT. When it is 12:00 PM in Indonesia it is 1:00 PM in HKT.

Do Indonesia and HKT use different time zones?

Indonesia (Indonesia) uses WIB at UTC+07:00, while HKT uses HKT at UTC+08:00. The IANA identifiers are Asia/Jakarta and Asia/Hong_Kong.

Does daylight saving time affect the Indonesia–HKT difference?

Neither zone observes daylight saving time, so the +1h offset between Indonesia and HKT is fixed all year.

Which other cities share Indonesia's time zone?

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

Which countries use WIB, Indonesia's zone?

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

Is there a day difference between Indonesia and HKT?

Not normally. The +1h gap only pushes the date over for late-evening times.

What is the time difference between Indonesia and HKT?

HKT is +1h from Indonesia.

What timezone is Indonesia in?

Indonesia operates on its local timezone.

What timezone is HKT in?

HKT operates on its local timezone.

Which countries use WIB (Western Indonesia Time)?

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

Does WIB observe daylight saving time?

No, WIB does not observe daylight saving time and remains at UTC+07:00 year-round.

What are some interesting 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.

Which cities are in the HKT timezone?

Major cities in the HKT timezone include Hong Kong, Kowloon, Tsuen Wan, Sha Tin.

What is the UTC offset for HKT?

Hong Kong Time (HKT) is at UTC+08:00.

What should I know about the HKT timezone?

Hong Kong does not observe daylight saving time and has kept UTC+08:00 since 1979. HKT shares its offset with China Standard Time, Singapore Time and Philippine Time.