Time Converter

HST to AEST Time Converter

Convert Hawaii Time to Australian Eastern Time with a live clock and clean permalinks.

From
HST
Honolulu

To
AEST / AEDT
Sydney

When it is 7:30 AM in Hawaii Time, it is 4:30 AM in Australian Eastern Time.

Current gap Australian Eastern Time is 21 hours ahead of Hawaii Time.
UTC offsets now UTC -10 and UTC +11
Quick example 12:00 PM in HST = 9:00 AM in AEST
Shared work window There is little or no normal workday overlap.

HST to AEST at a glance

Australian Eastern Time is 21 hours ahead of Hawaii Time. If someone gives you a time in Hawaii Time, move the clock by 21 hours to read it in Australian Eastern Time. A 9:00 AM start in Honolulu becomes 6:00 AM in Sydney.

What Hawaii Time covers

Hawaii Time is used in Honolulu and the rest of Hawaii. It does not switch for daylight saving time. It is helpful when your team works with travel, hospitality, or customers in the Pacific.

What Australian Eastern Time covers

Australian Eastern Time covers Sydney, Melbourne, and Canberra. It is the busiest business clock in Australia. It is useful for APAC support, education, and scheduling with teams in eastern Australia.

Quick answers

What is the time difference between HST and AEST?

Australian Eastern Time is 21 hours ahead of Hawaii Time.

What happens to a 3:00 PM meeting in HST?

It lands at 12:00 PM in AEST.

Does daylight saving time matter for HST to AEST?

Hawaii Time and Australian Eastern Time are shown using the offsets that are active right now, so the result already reflects any daylight saving change in effect today.