AKST to KST
+18hAKST
AKSTSOURCEKST
KSTGreen rows indicate typical business hours (9 AM - 5 PM)
AKST and KST on the World Map
The map below highlights the AKST (Alaska Standard Time) and KST (Korea Standard Time) timezone regions across the globe.
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.
KST – Korea Standard Time
UTC+09:00Korea Standard Time (KST) is the time zone for South Korea, 9 hours ahead of UTC.
- •South Korea does not observe daylight saving time.
- •Seoul is home to Samsung, LG, and Hyundai headquarters.
- •KST is the same offset as JST (UTC+09:00).
Comparing Time Zones: AKST and KST
AKST runs on Alaska Standard Time (AKST) at UTC-09:00. KST runs on Korea Standard Time (KST) at UTC+09:00. That puts AKST 18 hours ahead of KST — a difference of +18h at the current offsets.
In practice, when it is 9:00 AM in AKST it is 3:00 AM in KST on the next day. Midnight in AKST is 6:00 PM in KST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
AKST to KST time conversion table
| AKST (AKST) | KST (KST) | Day |
|---|---|---|
| 12:00 AM | 6:00 PM | same day |
| 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 |
| 12:00 PM | 6:00 AM | next day |
| 3:00 PM | 9:00 AM | next day |
| 5:00 PM | 11:00 AM | next day |
| 6:00 PM | 12:00 PM | next day |
| 9:00 PM | 3:00 PM | next day |
Why people convert AKST to KST time
- Scheduling a call from AKST to KST: a 10:00 AM start in AKST lands at 4:00 AM in KST the next day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +18h gap: AKST and KST have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in KST is 3:00 AM in AKST.
- Booking travel or deliveries: tracking KST local time against AKST keeps pickup windows and arrival estimates honest across the +18h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM AKST" is unambiguous; "3 PM" across a +18h gap is not.
- With a +18h gap there is no shared 9-to-5 window, so alternate the early start: one week AKST takes the early slot, the next week KST does.
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).
About KST (Korea Standard Time)
Korea Standard Time (KST) is the time zone used in South Korea. It shares the same UTC offset as Japan Standard Time but is a distinct time zone. South Korea does not observe daylight saving time. Seoul, the capital, is a major global tech and business hub.
Best time to call between AKST and KST
With a +18h offset there is no overlap inside a normal 9 AM – 5 PM day. KST opens at 9:00 AM KST, which is 3:00 AM in AKST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
AKST and KST have no shared working hours because of the +18h gap. Teams need to alternate early starts or rely on asynchronous handovers.
AKST is 18 hours ahead of KST (AKST UTC-09:00 → KST UTC+09:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
AKST
☀ Currently in DST
Standard: UTC-09:00 · DST: UTC-08:00
Clocks fall back on Sun, Nov 1, 2026
KST
Does not observe DST
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 AKST and KST?
AKST (AKST, UTC-09:00) is 18 hours ahead of KST (KST, UTC+09:00). The gap is currently +18h.
How do I convert AKST time to KST time?
Add +18h to AKST local time. For example, 9:00 AM in AKST is 3:00 AM in KST (next day).
What time is it in KST right now?
KST uses KST at UTC+09:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +18h offset from AKST.
What is the best time to call KST from AKST?
There is no shared working-hours window because of the +18h gap. The closest option is 1:00 PM in AKST, which is 7:00 AM in KST.
Which is ahead, AKST or KST?
AKST is 18 hours ahead of KST. When it is 12:00 PM in AKST it is 6:00 AM in KST.
Does daylight saving time affect the AKST–KST difference?
Neither zone observes daylight saving time, so the +18h offset between AKST and KST is fixed all year.
Which other cities share AKST's time zone?
AKST also covers Anchorage, Fairbanks, Juneau, Sitka, Wasilla.
Which countries use AKST, AKST's zone?
AKST is used in United States (Alaska).
Is there a day difference between AKST and KST?
Sometimes. The +18h gap is large enough that 8:00 PM or later in AKST already falls on the next day in KST.
What is the time difference between AKST and KST?
KST is +18h from AKST.
What timezone is AKST in?
AKST operates on its local timezone.
What timezone is KST in?
KST operates on its local timezone.
Which countries use AKST (Alaska Standard Time)?
AKST is used in United States (Alaska).
Does AKST observe daylight saving time?
Yes, AKST switches to AKDT during summer months.
What are some interesting facts about AKST?
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.
Which cities are in the KST timezone?
Major cities in the KST timezone include Seoul, Busan, Incheon, Daegu, Daejeon, Pyongyang.
What is the UTC offset for KST?
Korea Standard Time (KST) is at UTC+09:00.
What should I know about the KST timezone?
South Korea does not observe daylight saving time. Seoul is home to Samsung, LG, and Hyundai headquarters.
When is it midnight in AKST, what time is it in KST?
When it is 12:00 AM (midnight) in AKST (AKST), it is +18h later in KST (KST).
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See every conversion from AKST →·See every conversion from KST →