AKST to WIB
+16hAKST
AKSTSOURCEWIB
WIBGreen rows indicate typical business hours (9 AM - 5 PM)
AKST and WIB on the World Map
The map below highlights the AKST (Alaska Standard Time) and WIB (Western Indonesia 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.
WIB – Western Indonesia Time
UTC+07:00Western Indonesia Time (WIB, UTC+07:00) covers Java, Sumatra and West Kalimantan, including Jakarta.
- •Indonesia spans three time zones: WIB (UTC+07:00), WITA (UTC+08:00) and WIT (UTC+09:00).
- •Indonesia has not observed daylight saving time since 1964.
- •Jakarta is the largest city in Southeast Asia by population.
- •WIB shares the UTC+07:00 offset with Indochina Time.
Everything You Need to Know About AKST and WIB Time
AKST runs on Alaska Standard Time (AKST) at UTC-09:00. WIB runs on Western Indonesia Time (WIB) at UTC+07:00. That puts AKST 16 hours ahead of WIB — a difference of +16h at the current offsets.
In practice, when it is 9:00 AM in AKST it is 1:00 AM in WIB on the next day. Midnight in AKST is 4:00 PM in WIB. Neither zone observes daylight saving time, so the offset between them stays constant all year.
AKST to WIB time conversion table
| AKST (AKST) | WIB (WIB) | Day |
|---|---|---|
| 12:00 AM | 4:00 PM | same day |
| 6:00 AM | 10:00 PM | same day |
| 7:00 AM | 11:00 PM | same day |
| 8:00 AM | 12:00 AM | next day |
| 9:00 AM | 1:00 AM | next day |
| 12:00 PM | 4:00 AM | next day |
| 3:00 PM | 7:00 AM | next day |
| 5:00 PM | 9:00 AM | next day |
| 6:00 PM | 10:00 AM | next day |
| 9:00 PM | 1:00 PM | next day |
Why people convert AKST to WIB time
- Scheduling a call from AKST to WIB: a 10:00 AM start in AKST lands at 2:00 AM in WIB the next day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +16h gap: AKST and WIB 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 WIB is 1:00 AM in AKST.
- Booking travel or deliveries: tracking WIB local time against AKST keeps pickup windows and arrival estimates honest across the +16h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM AKST" is unambiguous; "3 PM" across a +16h gap is not.
- With a +16h gap there is no shared 9-to-5 window, so alternate the early start: one week AKST takes the early slot, the next week WIB 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 WIB (Western Indonesia Time)
Western Indonesia Time (WIB, Waktu Indonesia Barat) is one of Indonesia's three time zones, fixed at UTC+07:00 all year. It covers Java, Sumatra, West Kalimantan and the provinces around them — home to Jakarta, the country's capital and largest city, plus Surabaya and Bandung. Indonesia does not observe daylight saving time, so WIB never shifts. WIB shares its UTC+07:00 offset with Indochina Time (ICT) and Christmas Island Time, but is a distinct zone covering the western half of the Indonesian archipelago. The country's other zones are WITA (UTC+08:00) in the centre and WIT (UTC+09:00) in the east.
Best time to call between AKST and WIB
With a +16h offset there is no overlap inside a normal 9 AM – 5 PM day. WIB opens at 9:00 AM WIB, which is 1:00 AM in AKST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
AKST and WIB have no shared working hours because of the +16h gap. Teams need to alternate early starts or rely on asynchronous handovers.
AKST is 16 hours ahead of WIB (AKST UTC-09:00 → WIB UTC+07:00). 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
WIB
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 WIB?
AKST (AKST, UTC-09:00) is 16 hours ahead of WIB (WIB, UTC+07:00). The gap is currently +16h.
How do I convert AKST time to WIB time?
Add +16h to AKST local time. For example, 9:00 AM in AKST is 1:00 AM in WIB (next day).
What time is it in WIB right now?
WIB uses WIB at UTC+07:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +16h offset from AKST.
What is the best time to call WIB from AKST?
There is no shared working-hours window because of the +16h gap. The closest option is 1:00 PM in AKST, which is 5:00 AM in WIB.
Which is ahead, AKST or WIB?
AKST is 16 hours ahead of WIB. When it is 12:00 PM in AKST it is 4:00 AM in WIB.
Does daylight saving time affect the AKST–WIB difference?
Neither zone observes daylight saving time, so the +16h offset between AKST and WIB 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 WIB?
Sometimes. The +16h gap is large enough that 8:00 PM or later in AKST already falls on the next day in WIB.
What is the time difference between AKST and WIB?
WIB is +16h from AKST.
What timezone is AKST in?
AKST operates on its local timezone.
What timezone is WIB in?
WIB 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 WIB timezone?
Major cities in the WIB timezone include Jakarta, Surabaya, Bandung, Medan, Palembang.
What is the UTC offset for WIB?
Western Indonesia Time (WIB) is at UTC+07:00.
What should I know about the WIB timezone?
Indonesia spans three time zones: WIB (UTC+07:00), WITA (UTC+08:00) and WIT (UTC+09:00). Indonesia has not observed daylight saving time since 1964.
When is it midnight in AKST, what time is it in WIB?
When it is 12:00 AM (midnight) in AKST (AKST), it is +16h later in WIB (WIB).
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