AEDT to AKST Converter
Convert time between Australian Eastern Daylight Time (AEDT) and Alaska Standard Time (AKST)
Australian Eastern Daylight Time (AEDT)
Alaska Standard Time (AKST)
Time Difference
Alaska Standard Time (AKST) is 0 hours ahead of Australian Eastern Daylight Time (AEDT)
Select Date
Select Time
Quick Reference
| AEDT | AKST |
|---|---|
| 13:00 | 17:00 |
| 15:00 | 19:00 |
| 17:00 | 21:00 |
| 19:00 | 23:00 |
| 21:00 | 01:00 |
| 23:00 | 03:00 |
| 01:00 | 05:00 |
| 03:00 | 07:00 |
| 05:00 | 09:00 |
| 07:00 | 11:00 |
| 09:00 | 13:00 |
| 11:00 | 15:00 |
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
About AEDT to AKST Time Conversion
Converting time between Australian Eastern Daylight Time (AEDT) and Alaska Standard Time (AKST) represents one of the most extreme timezone gaps for business coordination globally. AEDT is UTC+11 (observed from the first Sunday in October to the first Sunday in April during Australian summer), while AKST is UTC-9 (observed from November to March in Alaska). AEDT is 20 hours ahead of AKST.
This 20-hour offset means Sydney is almost exactly 1 day ahead of Anchorage. The extreme difference leaves almost no overlap in standard business hours, making real-time collaboration extremely challenging. This is one of the most demanding timezone gaps for multinational companies. Australian companies coordinating with Alaska must plan strategically, using asynchronous communication and carefully timed coordination windows.
Common Use Cases for AEDT to AKST Conversion
Business & Work
- Scheduling with Alaska-based operations during the brief business hour windows
- Coordinating software development across extreme time zones using asynchronous methods
- Managing Alaska supply chain and logistics operations from Australia
- Planning conference calls requiring careful timing for both regions
- Coordinating distributed teams with 24/7 operations requirements across vast distance
Personal & Travel
- Coordinating with family and friends in Alaska
- Planning travel between Australia and Alaska destinations
- Scheduling virtual meetings with Alaska-based colleagues
- Arranging online collaboration with international Alaskan partners
- Managing business relationships with Anchorage-based companies
Time Zone Information
Australian Eastern Daylight Time (AEDT)
- UTC Offset: UTC+11
- IANA Timezone: Australia/Sydney
- Daylight Saving: Daylight saving time (first Sunday in October to first Sunday in April)
- Major Cities: Sydney, Melbourne, Brisbane, Canberra, Newcastle
- Coverage: Eastern Australia during summer months
Alaska Standard Time (AKST)
- UTC Offset: UTC-9
- IANA Timezone: America/Anchorage
- Daylight Saving: Standard time (November to March), transitions to AKDT
- Major Cities: Anchorage, Juneau, Fairbanks, Ketchikan
- Coverage: Alaska and most of western Alaska
Quick Reference: AEDT to AKST
Remember: AEDT is 20 hours ahead of AKST. This is nearly a full day ahead. When Alaska transitions to AKDT (second Sunday in March), the difference becomes 19 hours. When Australia transitions to AEST (early April), the difference becomes 19 hours with AKST.
Frequently Asked Questions
What is the time difference between AEDT and AKST?
Australian Eastern Daylight Time (AEDT) is UTC+11, while Alaska Standard Time (AKST) is UTC-9. This means AEDT is 20 hours ahead of AKST. When it's 12:00 PM (noon) in Sydney (AEDT), it's 4:00 PM the previous day in Anchorage (AKST).
Is this the most extreme timezone gap for business coordination?
The 20-hour AEDT-AKST offset is one of the most extreme timezone gaps globally for business regions. It means Sydney is almost exactly 1 day ahead of Alaska. This extreme offset leaves almost no overlap in standard business hours, making real-time collaboration extremely challenging. Only AEDT-HST (Hawaii, UTC-10, 21 hours) is worse for Australian coordination.
When does Alaska transition to AKDT and how does it affect scheduling?
Alaska transitions from AKST (UTC-9) to AKDT (Alaska Daylight Time, UTC-8) on the second Sunday in March and back to AKST on the first Sunday in November. When AKDT is active, the offset with AEDT becomes 19 hours instead of 20, improving overlap by 1 hour. This transition occurs when Australia is still in AEDT, requiring schedule adjustments.
What are the best times to schedule calls between Australia and Alaska?
Sydney morning (8-10 AM AEDT) aligns with Alaska afternoon (4-6 PM AKST previous day). Sydney afternoon (2-4 PM AEDT) aligns with Alaska evening (8-10 PM AKST previous day). Sydney evening (6-8 PM AEDT) aligns with Alaska night/midnight (12-2 AM AKST). Sydney morning to afternoon windows are most practical for business meetings.
Why is the AEDT-AKST offset so extreme?
AKST is UTC-9 (one of the most western US time zones) and AEDT is UTC+11 (one of the most eastern Australia time zones). Together, they span 20 hours of the 24-hour day. This represents nearly opposite sides of the globe for these business regions. Alaska's geographic location and time zone make it extremely challenging for real-time coordination with Australian companies.
How do companies handle AEDT-AKST coordination?
With a 20-hour offset, most companies rely heavily on asynchronous communication: email, project management systems, recorded video messages. Many organizations with significant operations in both regions use 24/7 coverage models with split teams. Some rely on specific coordination windows (Sydney morning = Alaska previous evening) and schedule critical meetings during these brief windows for both regions to be in working hours.
Pro Tips
- • AEDT is 20 hours ahead of AKST - a 12 PM call in Sydney is 4 PM the previous day in Anchorage. Sydney is almost exactly 1 day ahead.
- • Sydney morning (8-10 AM AEDT) = Alaska afternoon (4-6 PM AKST) - the best window for real-time business coordination.
- • Sydney afternoon (2-4 PM AEDT) = Alaska evening (8-10 PM AKST) - possible for evening meetings in Alaska.
- • In March, Alaska transitions to AKDT (UTC-8), reducing the offset from 20 to 19 hours, improving overlap by 1 hour.
- • Mark your calendar: Alaska transitions to AKDT (second Sunday of March). Adjust Sydney morning meeting times with Anchorage teams accordingly.
- • Use asynchronous communication for non-urgent matters. Live calls are impractical except for Sydney morning = Alaska previous evening window.
Update Logs
View the latest updates and features