HST to AEST
Convert Hawaii Time — Honolulu to Australian Eastern Time — Sydney — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in Honolulu, it's 5:00 AM in Sydney. Sydney is 20 hours ahead of Honolulu. Use the converter above to turn any HST time into AEST, or scan the hour-by-hour table below for the full day.
HST to AEST at a glance
Planning a meeting between Honolulu and Sydney
Honolulu and Sydney share no standard 9-to-5 overlap, so a live call usually means one side taking an early-morning or late-evening slot. The hourly table below helps you pick the least-inconvenient time for everyone.
Hour-by-hour: Honolulu to Sydney
A full day mapped from HST to AEST.
Frequently asked
Is Sydney ahead of or behind Honolulu?
Sydney is 20 hours ahead of Honolulu.
What is 12:00 PM HST in AEST?
12:00 PM in Honolulu is 8:00 AM in Sydney.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so HST and AEST automatically reflect the correct daylight-saving offset for the current date.