Melbourne to Honolulu
-20hMelbourne
AESTSOURCEHonolulu
HSTGreen rows indicate typical business hours (9 AM - 5 PM)
AEST and HST on the World Map
The map below highlights the AEST (Australian Eastern Standard Time) and HST (Hawaii Standard Time) timezone regions across the globe.
AEST – Australian Eastern Standard Time
UTC+10:00Australian Eastern Standard Time (AEST) covers eastern Australia, 10 hours ahead of UTC.
- •Queensland does not observe daylight saving time, staying on AEST year-round.
- •Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.
- •The Australian Securities Exchange (ASX) operates on AEST/AEDT.
- •AEST is 15 hours ahead of EST during winter.
HST – Hawaii Standard Time
UTC-10:00Hawaii Standard Time (HST) is the time zone for the Hawaiian Islands, 10 hours behind UTC.
- •Hawaii does not observe daylight saving time.
- •HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
- •Hawaii is one of only two US states that don't observe DST (the other is Arizona).
About Melbourne
WikipediaMelbourne operates on Australian Eastern Time (AEST/AEDT). As Australia's second-largest city, Melbourne shares business hours with Sydney and the ASX.
Melbourne was the capital of Australia from 1901 to 1927.
About Honolulu
WikipediaHonolulu operates on Hawaii Standard Time (HST), UTC-10 with no daylight saving. Hawaii's consistent time makes it a predictable connection between Asia and mainland USA.
Pearl Harbor memorial receives over 2 million visitors annually.
Comparing Time Zones: Melbourne and Honolulu
Melbourne runs on Australian Eastern Standard Time (AEST) at UTC+10:00. Honolulu runs on Hawaii-Aleutian Standard Time (HST) at UTC-10:00. That puts Melbourne 20 hours behind Honolulu — a difference of -20h at the current offsets.
In practice, when it is 9:00 AM in Melbourne it is 1:00 PM in Honolulu on the previous day. Midnight in Melbourne is 4:00 AM in Honolulu. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Melbourne to Honolulu time conversion table
| Melbourne (AEST) | Honolulu (HST) | Day |
|---|---|---|
| 12:00 AM | 4:00 AM | previous day |
| 6:00 AM | 10:00 AM | previous day |
| 7:00 AM | 11:00 AM | previous day |
| 8:00 AM | 12:00 PM | previous day |
| 9:00 AM | 1:00 PM | previous day |
| 12:00 PM | 4:00 PM | previous day |
| 3:00 PM | 7:00 PM | previous day |
| 5:00 PM | 9:00 PM | previous day |
| 6:00 PM | 10:00 PM | previous day |
| 9:00 PM | 1:00 AM | same day |
Why people convert Melbourne to Honolulu time
- Scheduling a call from Melbourne to Honolulu: a 10:00 AM start in Melbourne lands at 2:00 PM in Honolulu the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -20h gap: Melbourne and Honolulu 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 Honolulu is 1:00 PM in Melbourne.
- Watching a live event or market open: Melbourne viewers need 1:00 PM in Honolulu to catch a 9:00 AM start there, and 8:00 PM if the event is anchored to Melbourne.
- Always state the zone abbreviation, not just the hour. "3:00 PM AEST" is unambiguous; "3 PM" across a -20h gap is not.
- With a -20h gap there is no shared 9-to-5 window, so alternate the early start: one week Melbourne takes the early slot, the next week Honolulu does.
- Melbourne: Clocks spring forward on Sat, Oct 3, 2026. Re-check this page after that date because the offset changes and so does the -20h gap.
About AEST (Australian Eastern Standard Time)
Australian Eastern Standard Time (AEST) is used in the eastern states of Australia including New South Wales, Victoria, Queensland, Tasmania, and the ACT. During summer (October to April), NSW, VIC, TAS, and ACT switch to Australian Eastern Daylight Time (AEDT, UTC+11:00), while Queensland remains on AEST year-round.
About HST (Hawaii Standard Time)
Hawaii Standard Time (HST) is used in the state of Hawaii and does not observe daylight saving time. This makes HST one of the most consistent time zones in the US. The Hawaiian Islands are among the last places on Earth to see a new calendar day.
Best time to call between Melbourne and Honolulu
With a -20h offset there is no overlap inside a normal 9 AM – 5 PM day. Honolulu opens at 9:00 AM HST, which is 1:00 PM in Melbourne, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Melbourne and Honolulu have no shared working hours because of the -20h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Melbourne is 20 hours behind Honolulu (AEST UTC+10:00 → HST UTC-10:00). 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
Melbourne
❄ Currently in Standard Time
Standard: UTC+10:00 · DST: UTC+11:00
Clocks spring forward on Sat, Oct 3, 2026
Honolulu
Does not observe DST
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Melbourne and Honolulu?
Melbourne (AEST, UTC+10:00) is 20 hours behind Honolulu (HST, UTC-10:00). The gap is currently -20h.
How do I convert Melbourne time to Honolulu time?
Add -20h to Melbourne local time. For example, 9:00 AM in Melbourne is 1:00 PM in Honolulu (previous day).
What time is it in Honolulu right now?
Honolulu uses HST at UTC-10:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -20h offset from Melbourne.
What is the best time to call Honolulu from Melbourne?
There is no shared working-hours window because of the -20h gap. The closest option is 1:00 PM in Melbourne, which is 5:00 PM in Honolulu.
Which is behind, Melbourne or Honolulu?
Melbourne is 20 hours behind Honolulu. When it is 12:00 PM in Melbourne it is 4:00 PM in Honolulu.
Do Melbourne and Honolulu use different time zones?
Melbourne (Australia) uses AEST at UTC+10:00, while Honolulu (USA) uses HST at UTC-10:00. The IANA identifiers are Australia/Melbourne and Pacific/Honolulu.
Does daylight saving time affect the Melbourne–Honolulu difference?
Neither zone observes daylight saving time, so the -20h offset between Melbourne and Honolulu is fixed all year.
Which other cities share Melbourne's time zone?
AEST also covers Sydney, Melbourne, Brisbane, Canberra, Hobart, Gold Coast.
Which countries use AEST, Melbourne's zone?
AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.
Is there a day difference between Melbourne and Honolulu?
Sometimes. The -20h gap is large enough that 8:00 PM or later in Melbourne already falls on the in Honolulu.
What is the time difference between Melbourne and Honolulu?
Honolulu is -20h from Melbourne.
What timezone is Melbourne in?
Melbourne operates on Australian Eastern Time (AEST/AEDT). As Australia's second-largest city, Melbourne shares business hours with Sydney and the ASX.
What timezone is Honolulu in?
Honolulu operates on Hawaii Standard Time (HST), UTC-10 with no daylight saving. Hawaii's consistent time makes it a predictable connection between Asia and mainland USA.
What are the business hours in Melbourne?
Standard business hours in Melbourne are 9:00 AM - 5:00 PM AEST.
What are the business hours in Honolulu?
Standard business hours in Honolulu are 8:00 AM - 5:00 PM HST.
What is the best time to schedule a call between Melbourne and Honolulu?
The best overlap for a call is when both cities are in business hours. Melbourne works 9:00 AM - 5:00 PM AEST and Honolulu works 8:00 AM - 5:00 PM HST (-20h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Melbourne and Honolulu?
Melbourne uses AUD (A$) while Honolulu uses USD ($). Check current exchange rates when planning travel or business between these cities.
How do Melbourne and Honolulu compare in size?
Melbourne has a population of approximately 5.1 million (metro: 5.1 million), while Honolulu has approximately 350,000 (metro: 1 million).
What are the major landmarks in Melbourne and Honolulu?
Melbourne is known for Federation Square, Melbourne Cricket Ground, Royal Botanic Gardens. Honolulu is famous for Waikiki Beach, Diamond Head, Pearl Harbor.
Do Melbourne and Honolulu have stock exchanges?
Yes. Melbourne has the ASX (Australian Securities Exchange) and Honolulu has the N/A (Uses NYSE/NASDAQ). The -20h time difference affects trading hour overlaps between these exchanges.
Which countries use AEST (Australian Eastern Standard Time)?
AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.
Does AEST observe daylight saving time?
Yes, AEST switches to AEDT during summer months.
What are some interesting facts about AEST?
Queensland does not observe daylight saving time, staying on AEST year-round. Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.
Which cities are in the HST timezone?
Major cities in the HST timezone include Honolulu, Hilo, Kailua, Pearl City, Kapolei.
What is the UTC offset for HST?
Hawaii Standard Time (HST) is at UTC-10:00.
What should I know about the HST timezone?
Hawaii does not observe daylight saving time. HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
When is it midnight in Melbourne, what time is it in Honolulu?
When it is 12:00 AM (midnight) in Melbourne (AEST), it is -20h later in Honolulu (HST).
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