HST to AKST
+1hHST
HSTSOURCEAKST
AKSTGreen rows indicate typical business hours (9 AM - 5 PM)
HST and AKST on the World Map
The map below highlights the HST (Hawaii Standard Time) and AKST (Alaska Standard Time) timezone regions across the globe.
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).
AKST – Alaska Standard Time
UTC-09:00Alaska Standard Time (AKST) is the time zone for the state of Alaska, 9 hours behind UTC.
- •Alaska is the largest US state by area but has only about 730,000 residents.
- •Anchorage is the most populous city in AKST with about 290,000 people.
- •The Aleutian Islands use HAST instead of AKST.
Understanding the +1h Gap: HST vs AKST
HST runs on Hawaii Standard Time (HST) at UTC-10:00. AKST runs on Alaska Standard Time (AKST) at UTC-09:00. That puts HST 1 hour ahead of AKST — a difference of +1h at the current offsets.
In practice, when it is 9:00 AM in HST it is 10:00 AM in AKST. Midnight in HST is 1:00 AM in AKST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
HST to AKST time conversion table
| HST (HST) | AKST (AKST) | Day |
|---|---|---|
| 12:00 AM | 1:00 AM | same day |
| 6:00 AM | 7:00 AM | same day |
| 7:00 AM | 8:00 AM | same day |
| 8:00 AM | 9:00 AM | same day |
| 9:00 AM | 10:00 AM | same day |
| 12:00 PM | 1:00 PM | same day |
| 3:00 PM | 4:00 PM | same day |
| 5:00 PM | 6:00 PM | same day |
| 6:00 PM | 7:00 PM | same day |
| 9:00 PM | 10:00 PM | same day |
Why people convert HST to AKST time
- Scheduling a call from HST to AKST: a 10:00 AM start in HST lands at 11:00 AM in AKST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both HST and AKST are inside the 9-to-5 working day between 9:00 AM and 4:00 PM HST time (10:00 AM–5:00 PM AKST). That is roughly 7 hours of usable overlap.
- Booking travel or deliveries: tracking AKST local time against HST keeps pickup windows and arrival estimates honest across the +1h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM HST" is unambiguous; "3 PM" across a +1h gap is not.
- Block 9:00 AM–4:00 PM HST as the recurring meeting window if you work primarily from HST and need AKST colleagues present.
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.
About AKST (Alaska Standard Time)
Alaska Standard Time (AKST) is used in nearly all of Alaska. Due to Alaska's vast geographic size, the Aleutian Islands use Hawaii-Aleutian Standard Time instead. During summer months, Alaska switches to Alaska Daylight Time (AKDT, UTC-08:00).
Best time to call between HST and AKST
Both HST and AKST sit inside the 9 AM – 5 PM working day between 9:00 AM–4:00 PM HST, which is 10:00 AM–5:00 PM AKST. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
HST and AKST share 7 hours of working-hours overlap (9:00 AM–4:00 PM HST), so scheduling a live meeting is straightforward.
HST is 1 hour ahead of AKST (HST UTC-10:00 → AKST UTC-09:00). The shared working window is 9:00 AM–4:00 PM HST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
HST
Does not observe DST
AKST
☀ Currently in DST
Standard: UTC-09:00 · DST: UTC-08:00
Clocks fall back on Sun, Nov 1, 2026
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 HST and AKST?
HST (HST, UTC-10:00) is 1 hour ahead of AKST (AKST, UTC-09:00). The gap is currently +1h.
How do I convert HST time to AKST time?
Add +1h to HST local time. For example, 9:00 AM in HST is 10:00 AM in AKST.
What time is it in AKST right now?
AKST uses AKST at UTC-09:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +1h offset from HST.
What is the best time to call AKST from HST?
Call between 9:00 AM and 4:00 PM HST — that maps to 10:00 AM–5:00 PM AKST and keeps both parties inside the working day.
Which is ahead, HST or AKST?
HST is 1 hour ahead of AKST. When it is 12:00 PM in HST it is 1:00 PM in AKST.
Does daylight saving time affect the HST–AKST difference?
Neither zone observes daylight saving time, so the +1h offset between HST and AKST is fixed all year.
Which other cities share HST's time zone?
HST also covers Honolulu, Hilo, Kailua, Pearl City, Kapolei.
Which countries use HST, HST's zone?
HST is used in United States (Hawaii).
Is there a day difference between HST and AKST?
Not normally. The +1h gap only pushes the date over for late-evening times.
What is the time difference between HST and AKST?
AKST is +1h from HST.
What timezone is HST in?
HST operates on its local timezone.
What timezone is AKST in?
AKST operates on its local timezone.
Which countries use HST (Hawaii Standard Time)?
HST is used in United States (Hawaii).
Does HST observe daylight saving time?
No, HST does not observe daylight saving time and remains at UTC-10:00 year-round.
What are some interesting facts about HST?
Hawaii does not observe daylight saving time. HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
Which cities are in the AKST timezone?
Major cities in the AKST timezone include Anchorage, Fairbanks, Juneau, Sitka, Wasilla.
What is the UTC offset for AKST?
Alaska Standard Time (AKST) is at UTC-09:00. During daylight saving time, it shifts to AKDT.
What should I know about the AKST timezone?
Alaska is the largest US state by area but has only about 730,000 residents. Anchorage is the most populous city in AKST with about 290,000 people.
When is it midnight in HST, what time is it in AKST?
When it is 12:00 AM (midnight) in HST (HST), it is +1h later in AKST (AKST).
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