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HST to HKT Time Converter

Use this HST to HKT time converter to compare United States and Hong Kong time instantly. HKT is 18 hours ahead of HST, so 9:00 AM HST becomes 3:00 AM (next day) HKT and 5:00 PM HST becomes 11:00 AM (next day) HKT. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.

HST Hawaii Standard Time
...
HKT Hong Kong Time
...
Select a time to convert

HST to HKT Quick Facts

Use this HST to HKT converter to compare United States and Hong Kong time, check the 18 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Find the best overlap for calls and meetings.

Time Difference
Hong Kong Time is 18 hours ahead of Hawaii Standard Time
Useful when deadlines, handoffs, or calls cross workday boundaries.
Best Call Window
Normal business hours do not overlap well here, so test early-morning or late-evening compromise slots.
Common Use Cases
Useful for remote teams, customer support windows, travel planning, webinars, and same-day deadline handoffs.

How to Convert HST to HKT

Converting between Hawaii Standard Time and Hong Kong Time means accounting for a 18 hours gap — here's how to do it in under 10 seconds with no sign-up.

Enter Your HST Time

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.

Read the HKT Result

The equivalent Hong Kong Time (UTC +8) time appears immediately. Since HKT is 18 hours ahead of HST, conversions often cross midnight — look for the date-change label.

Copy or Fine-Tune

Click "Copy Time" to grab the HKT result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — helpful for scheduling recurring United States–Hong Kong calls.

Why Choose Our HST to HKT Converter

Align HST–HKT Meetings Instantly

With 18 hours between HST and HKT, 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.

Spot Date-Line Shifts at a Glance

A HST evening at 9 PM is already the next morning in HKT. This converter flags date changes beside the result — critical when booking flights, hitting deadlines, or scheduling across the United States–Hong Kong corridor.

Handles DST Transitions Automatically

Daylight Saving adjustments can widen or narrow the HST–HKT 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.

Never Miss a HST-Timed Event

Product launches, sports matches, and webinars are often announced in HST. Convert the event time to HKT so you know exactly when to tune in — with a 18 hours difference, a morning event in United States falls during work hours in Hong Kong.

HST to HKT Time Conversion Chart

Quick-reference conversion table covering every hour of the day at a glance.

Complete 24-Hour Conversion

Hawaii Standard Time to Hong Kong Time full day schedule

12:00 AM
HST
6:00 PM
HKT
1:00 AM
HST
7:00 PM
HKT
2:00 AM
HST
8:00 PM
HKT
3:00 AM
HST
9:00 PM
HKT
4:00 AM
HST
10:00 PM
HKT
5:00 AM
HST
11:00 PM
HKT
6:00 AM
HST
12:00 AM
HKT
(next day)
7:00 AM
HST
1:00 AM
HKT
(next day)
8:00 AM
HST
2:00 AM
HKT
(next day)
9:00 AM
HST
3:00 AM
HKT
(next day)
10:00 AM
HST
4:00 AM
HKT
(next day)
11:00 AM
HST
5:00 AM
HKT
(next day)
12:00 PM
HST
6:00 AM
HKT
(next day)
1:00 PM
HST
7:00 AM
HKT
(next day)
2:00 PM
HST
8:00 AM
HKT
(next day)
3:00 PM
HST
9:00 AM
HKT
(next day)
4:00 PM
HST
10:00 AM
HKT
(next day)
5:00 PM
HST
11:00 AM
HKT
(next day)
6:00 PM
HST
12:00 PM
HKT
(next day)
7:00 PM
HST
1:00 PM
HKT
(next day)
8:00 PM
HST
2:00 PM
HKT
(next day)
9:00 PM
HST
3:00 PM
HKT
(next day)
10:00 PM
HST
4:00 PM
HKT
(next day)
11:00 PM
HST
5:00 PM
HKT
(next day)