AKST to HST Converter
Convert time between Alaska Standard Time (AKST) and Hawaii Standard Time (HST)
Alaska Standard Time (AKST)
Hawaii Standard Time (HST)
Time Difference
Hawaii Standard Time (HST) is 0 hours ahead of Alaska Standard Time (AKST)
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Select Time
Quick Reference
| AKST | HST |
|---|---|
| 17:00 | 16:00 |
| 19:00 | 18:00 |
| 21:00 | 20:00 |
| 23:00 | 22:00 |
| 01:00 | 00:00 |
| 03:00 | 02:00 |
| 05:00 | 04:00 |
| 07:00 | 06:00 |
| 09:00 | 08:00 |
| 11:00 | 10:00 |
| 13:00 | 12:00 |
| 15:00 | 14:00 |
Top 10 Most Common Time Zones
| Abbreviation | Full Name | UTC Offset | Typical Use |
|---|---|---|---|
| UTC | Coordinated Universal Time | UTC ±0 | Global reference standard (servers, logs, APIs) |
| EST / EDT | Eastern (US) Time | UTC −5 / −4 | New York, Toronto — North American business hub |
| CST / CDT | Central (US) Time | UTC −6 / −5 | Chicago, Dallas — US central business region |
| PST / PDT | Pacific (US) Time | UTC −8 / −7 | San Francisco, Los Angeles — tech industry standard |
| GMT / BST | Greenwich Mean / British Summer Time | UTC 0 / +1 | UK, used globally as a reference with UTC |
| CET / CEST | Central European (Summer) Time | UTC +1 / +2 | Paris, Berlin, Amsterdam — EU business core |
| IST | India Standard Time | UTC +5:30 | India — major IT & outsourcing region |
| CST | China Standard Time | UTC +8 | Beijing, Shanghai — East Asia business hub |
| JST | Japan Standard Time | UTC +9 | Tokyo — finance & tech hub |
| AEST / AEDT | Australian Eastern (Daylight) Time | UTC +10 / +11 | Sydney, Melbourne — APAC regional business |
Why Time Zone Abbreviations Are Ambiguous
Unlike standardized identifiers (like America/New_York or Europe/London from the IANA tz database), abbreviations such as "CST" or "IST" are not globally unique. They can refer to different time zones depending on context — country, region, or even time of year (due to daylight saving time).
Common Ambiguous Time Zone Abbreviations
| Abbrev. | Common Meaning(s) | UTC Offset | Region(s) |
|---|---|---|---|
| CST | Central Standard Time / China Standard Time / Cuba Standard Time | UTC−6 / UTC+8 / UTC−5 | North America, China, Cuba |
| IST | Indian Standard Time / Irish Standard Time / Israel Standard Time | UTC+5:30 / UTC+1 / UTC+2 | India, Ireland, Israel |
| AST | Atlantic Standard Time / Arabia Standard Time | UTC−4 / UTC+3 | Caribbean, Canada, Middle East |
| PST | Pacific Standard Time / Philippine Standard Time | UTC−8 / UTC+8 | North America, Philippines |
| EST | Eastern Standard Time (North America / Australia) | UTC−5 / UTC+10 | North America, Australia |
✅ Best Practice
To avoid ambiguity, always:
- Use IANA tz identifiers — e.g.,
America/New_Yorkinstead of "EST" - Specify UTC offset explicitly — e.g.,
UTC−5when abbreviations must be used - Include the full timezone name — e.g., "Eastern Standard Time (EST)" with UTC offset
Related Time Zone Conversions
About AKST to HST Time Conversion
Converting time between Alaska Standard Time (AKST) and Hawaii Standard Time (HST) is essential for coordinating between Alaska and Hawaii during winter months. AKST is UTC-9 (observed from the first Sunday in November to the second Sunday in March), while HST is UTC-10 year-round. AKST is only 1 hour ahead of HST during the winter season.
This conversion is unique because of the minimal time difference, making coordination between Alaska and Hawaii more straightforward compared to other US mainland locations. Whether you're scheduling meetings between Anchorage and Honolulu headquarters, managing distributed teams across Alaska and Hawaii, or planning travel between these two regions, our accurate IANA-based converter ensures precise timezone calculations. The small 1-hour difference during AKST season provides better overlap for business hours between these regions.
Common Use Cases for AKST to HST Conversion
Business & Work
- Scheduling Alaska to Hawaii business meetings during winter months
- Coordinating between Alaska and Hawaii headquarters during AKST season
- Managing business operations across Alaska and Hawaiian regions
- Planning conference calls between Alaska and Hawaii teams during winter season
Personal & Travel
- Coordinating with family and friends in Hawaii during winter
- Planning travel between Alaska and Hawaiian destinations
- Scheduling virtual events for Alaska-Hawaii audiences during winter
- Arranging online meetings with Hawaii-based colleagues during AKST months
Time Zone Information
Alaska Standard Time (AKST)
- UTC Offset: UTC-9
- IANA Timezone: America/Anchorage
- Daylight Saving: Standard time (first Sunday in November to second Sunday in March)
- Major Cities: Anchorage, Fairbanks, Juneau, Ketchikan, Sitka
- Coverage: Alaska (winter months)
Hawaii Standard Time (HST)
- UTC Offset: UTC-10
- IANA Timezone: Pacific/Honolulu
- Daylight Saving: No daylight saving time (consistent year-round)
- Major Cities: Honolulu, Hilo, Kailua, Maui, Kauai
- Coverage: All Hawaiian islands (consistent year-round)
Quick Reference: AKST to HST
Remember: AKST is only 1 hour ahead of HST (during winter months, November to March). When daylight saving time begins (second Sunday in March) and AKST becomes AKDT, the difference decreases to 0 hours (same time). Hawaii does not observe daylight saving time, so HST remains constant year-round.
Frequently Asked Questions
What is the time difference between AKST and HST?
Alaska Standard Time (AKST) is UTC-9, while Hawaii Standard Time (HST) is UTC-10. AKST is only 1 hour ahead of HST. When it's 2:00 PM in Anchorage (AKST), it's 1:00 PM the same day in Honolulu (HST).
When is AKST active and how does it affect Hawaii coordination?
AKST is observed from the first Sunday in November to the second Sunday in March. During this period, Alaska is only 1 hour ahead of Hawaii. From March to November, when Alaska observes AKDT (UTC-8), the difference becomes 2 hours. This small time difference makes Alaska-Hawaii coordination relatively straightforward compared to other mainland locations.
Does Hawaii observe daylight saving time like AKST does?
No, Hawaii does not observe daylight saving time. Hawaii Standard Time (HST) remains UTC-10 year-round. This is why the time difference between Hawaii and Alaska varies - Alaska changes its clocks twice per year while Hawaii stays constant. AKST is specifically the winter offset for Alaska.
What major cities are in AKST and HST timezones?
AKST covers major Alaskan cities including Anchorage, Fairbanks, Juneau, Ketchikan, and Sitka during winter months. HST covers all Hawaiian islands with major cities being Honolulu, Hilo, Kailua, Waihuku, and Kaneohe. These regions represent Alaska during winter and the Hawaiian Islands.
What are the best times to schedule calls between AKST and HST regions?
The small 1-hour difference during AKST season provides excellent overlap for business hours. Mid-morning AKST times (9-11 AM) correspond to mid-morning HST (8-10 AM), providing the best window for real-time communication. Afternoon AKST times (2-5 PM) align well with afternoon HST times (1-4 PM), making this an ideal window for winter business coordination.
How does winter (AKST) coordination differ from summer (AKDT) coordination with Hawaii?
During winter (November-March, AKST season), Alaska is only 1 hour ahead of Hawaii, providing excellent overlap for business hours with minimal time coordination needed. During summer (March-November, AKDT season), the difference increases to 2 hours, making coordination slightly more challenging. The small winter time difference makes AKST season the easiest period for Alaska-Hawaii business operations.
Pro Tips
- • AKST is only 1 hour ahead of HST during winter months (November-March) - the smallest time difference among US mainland to Hawaii conversions.
- • When daylight saving time begins (second Sunday in March), AKST becomes AKDT and the difference increases to 2 hours.
- • Mid-morning to afternoon times show the best overlap - when it's 10 AM-4 PM in Anchorage, it's 9 AM-3 PM in Honolulu, perfect for business calls.
- • Hawaii does not observe daylight saving time, so HST is consistent year-round while AKST changes once per season.
- • For long-term projects spanning both seasons, account for the time difference change when AKST transitions to AKDT in March.
- • The minimal 1-hour winter difference makes Alaska-Hawaii coordination easier than coordinating with other mainland locations.
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