HST to AWST Time Converter
Use this HST to AWST time converter to compare United States and Australia time instantly. AWST is 18 hours ahead of HST, so 9:00 AM HST becomes 3:00 AM (next day) AWST and 5:00 PM HST becomes 11:00 AM (next day) AWST. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.
HST to AWST Quick Facts
Use this HST to AWST converter to compare United States and Australia time, check the 18 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Find the best overlap for calls and meetings.
How to Convert HST to AWST
Converting between Hawaii Standard Time and Australian Western Standard Time means accounting for a 18 hours gap — here's how to do it in under 10 seconds with no sign-up.
Pick the date and time in Hawaii Standard Time (UTC -10) that you want to convert. Hit "Now" to load the current HST time instantly, or use "+1h" to step forward and compare.
The equivalent Australian Western Standard Time (UTC +8) time appears immediately. Since AWST is 18 hours ahead of HST, conversions often cross midnight — look for the date-change label.
Click "Copy Time" to grab the AWST result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — helpful for scheduling recurring United States–Australia calls.
Why Choose Our HST to AWST Converter
With 18 hours between HST and AWST, business-hours overlap is limited. This tool instantly shows which hours work on both sides, so you can lock in a meeting without a chain of "does 3 PM work for you?" emails.
A HST evening at 9 PM is already the next morning in AWST. This converter flags date changes beside the result — critical when booking flights, hitting deadlines, or scheduling across the United States–Australia corridor.
Daylight Saving adjustments can widen or narrow the HST–AWST gap by an hour. During transition weeks many people get it wrong. This converter pulls the current UTC offsets automatically, so the result is right even on the changeover day.
Product launches, sports matches, and webinars are often announced in HST. Convert the event time to AWST so you know exactly when to tune in — with a 18 hours difference, a morning event in United States falls during work hours in Australia.
HST to AWST Time Conversion Chart
Quick-reference conversion table covering every hour of the day at a glance.
Hawaii Standard Time to Australian Western Standard Time full day schedule
| Hawaii Standard Time | Australian Western Standard Time |
|---|---|
| 12:00 AM |
6:00 PM
|
| 1:00 AM |
7:00 PM
|
| 2:00 AM |
8:00 PM
|
| 3:00 AM |
9:00 PM
|
| 4:00 AM |
10:00 PM
|
| 5:00 AM |
11:00 PM
|
| 6:00 AM |
12:00 AM
(next day)
|
| 7:00 AM |
1:00 AM
(next day)
|
| 8:00 AM |
2:00 AM
(next day)
|
| 9:00 AM |
3:00 AM
(next day)
|
| 10:00 AM |
4:00 AM
(next day)
|
| 11:00 AM |
5:00 AM
(next day)
|
| 12:00 PM |
6:00 AM
(next day)
|
| 1:00 PM |
7:00 AM
(next day)
|
| 2:00 PM |
8:00 AM
(next day)
|
| 3:00 PM |
9:00 AM
(next day)
|
| 4:00 PM |
10:00 AM
(next day)
|
| 5:00 PM |
11:00 AM
(next day)
|
| 6:00 PM |
12:00 PM
(next day)
|
| 7:00 PM |
1:00 PM
(next day)
|
| 8:00 PM |
2:00 PM
(next day)
|
| 9:00 PM |
3:00 PM
(next day)
|
| 10:00 PM |
4:00 PM
(next day)
|
| 11:00 PM |
5:00 PM
(next day)
|
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Convert Other Time Zones to AWST
Find the time difference from any major zone into Australian Western Standard Time. Use these pages when scheduling with Australia from a different region.