AEDT to AKDT Converter
Convert time between Australian Eastern Daylight Time (AEDT) and Alaska Daylight Time (AKDT)
Australian Eastern Daylight Time (AEDT)
Alaska Daylight Time (AKDT)
Time Difference
Alaska Daylight Time (AKDT) is 0 hours ahead of Australian Eastern Daylight Time (AEDT)
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Select Time
Quick Reference
| AEDT | AKDT |
|---|---|
| 12:00 | 18:00 |
| 14:00 | 20:00 |
| 16:00 | 22:00 |
| 18:00 | 00:00 |
| 20:00 | 02:00 |
| 22:00 | 04:00 |
| 00:00 | 06:00 |
| 02:00 | 08:00 |
| 04:00 | 10:00 |
| 06:00 | 12:00 |
| 08:00 | 14:00 |
| 10:00 | 16:00 |
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 AKDT Time Conversion
Converting time between Australian Eastern Daylight Time (AEDT) and Alaska Daylight Time (AKDT) bridges Sydney and Melbourne with Anchorage and Fairbanks. AEDT is UTC+11 while AKDT is UTC-8, placing AKDT 19 hours behind AEDT — a near-day difference that nearly always shifts conversions onto the previous calendar day.
This converter uses the IANA timezone database for accurate calculations through DST transitions in both regions. AEDT applies from October to April (Australia's summer), while AKDT applies from March to November (Alaska's summer). The 19-hour offset is in effect during the small overlap when AEDT is active in Australia and AKDT is active in Alaska.
Common Use Cases for AEDT to AKDT Conversion
Business & Work
- Scheduling meetings between Sydney/Melbourne teams and Alaska-based partners
- Coordinating project deadlines across Eastern Australia and Alaska
- Planning conference calls between Australia's eastern seaboard and Anchorage
Personal & Travel
- Planning travel itineraries between Eastern Australia and Alaska
- Coordinating with family and friends in Alaska from NSW, Victoria, or the ACT
- Scheduling virtual events for AEDT and AKDT audiences
Time Zone Information
Australian Eastern Daylight Time (AEDT)
- UTC Offset: UTC+11 (UTC+10 during AEST)
- IANA Timezone: Australia/Sydney
- Daylight Saving: First Sunday in October to First Sunday in April
- Major Cities: Sydney, Melbourne, Canberra, Hobart
- Coverage: New South Wales, Victoria, ACT, Tasmania during daylight saving period
Alaska Daylight Time (AKDT)
- UTC Offset: UTC-8
- IANA Timezone: America/Anchorage
- Daylight Saving: Second Sunday in March to First Sunday in November
- Major Cities: Anchorage, Fairbanks, Juneau, Sitka
- Coverage: Most of Alaska during daylight saving period
Quick Reference: AEDT to AKDT
Remember: AKDT is always 19 hours behind AEDT during overlapping daylight saving periods
Frequently Asked Questions
What is the time difference between AEDT and AKDT?
Australian Eastern Daylight Time (AEDT) is UTC+11, while Alaska Daylight Time (AKDT) is UTC-8. AKDT is 19 hours behind AEDT. When it is 12:00 PM in Sydney, it is 5:00 PM the previous day in Anchorage.
When does this AEDT to AKDT conversion apply?
AEDT runs from the first Sunday in October to the first Sunday in April. AKDT runs from the second Sunday in March to the first Sunday in November. Both are simultaneously active only during October-November and March-April overlap windows.
How does the time difference change throughout the year?
Outside the overlap windows the offset shifts. When Australia is on AEDT (UTC+11) and Alaska is on AKST (UTC-9), the gap is 20 hours. When both are on standard time (AEST and AKST), the gap is 17 hours.
What are the best times for AEDT-AKDT business calls?
The 19-hour gap leaves almost no live overlap. Early morning in Sydney (8:00 AM AEDT) is 1:00 PM the previous day in Anchorage — workable for both sides. Most teams handle AEDT-AKDT collaboration asynchronously.
Which countries/regions use AKDT timezone?
AKDT covers most of Alaska during daylight saving, including Anchorage, Fairbanks, Juneau, and Sitka. The Aleutian Islands use Hawaii-Aleutian Time and follow a different rule set.
Which countries/regions use AEDT timezone?
AEDT is observed in New South Wales, Victoria, Tasmania, and the ACT during the southern summer. Major cities include Sydney, Melbourne, Canberra, and Hobart. Brisbane and the rest of Queensland stay on AEST year-round.
Pro Tips
- • AKDT is 19 hours behind AEDT — subtract 19 hours from a Sydney time to get the Anchorage time.
- • Most AEDT to AKDT conversions cross into the previous calendar day in Alaska.
- • Best meeting window: 8:00–10:00 AM AEDT overlaps with 1:00–3:00 PM previous-day AKDT.
- • AEDT only applies during the southern summer. From April to October, eastern Australia uses AEST and the offset to AKDT becomes 18 hours.
- • Use IANA identifiers (Australia/Sydney and America/Anchorage) in calendar tools to handle DST transitions automatically.
- • Watch for the brief windows in October-November and March-April when DST transitions in either region change the offset by an hour.