SGT to AKDT Converter
Convert time between Singapore Standard Time (SGT) and Alaska Daylight Time (AKDT)
Singapore Standard Time (SGT)
Alaska Daylight Time (AKDT)
Time Difference
Alaska Daylight Time (AKDT) is 0 hours ahead of Singapore Standard Time (SGT)
Select Date
Select Time
Quick Reference
| SGT | AKDT |
|---|---|
| 10:00 | 18:00 |
| 12:00 | 20:00 |
| 14:00 | 22:00 |
| 16:00 | 00:00 |
| 18:00 | 02:00 |
| 20:00 | 04:00 |
| 22:00 | 06:00 |
| 00:00 | 08:00 |
| 02:00 | 10:00 |
| 04:00 | 12:00 |
| 06:00 | 14:00 |
| 08:00 | 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 SGT to AKDT Time Conversion
Converting time between Singapore Standard Time (SGT) and Alaska Daylight Time (AKDT) spans almost two-thirds of the globe. SGT is UTC+8 year-round, while AKDT is UTC-8, placing Singapore 16 hours ahead of Alaska when daylight saving is active. A Singapore daytime call lands in the previous calendar day in Anchorage.
This time zone converter uses the IANA timezone database to ensure accurate calculations. AKDT applies from the second Sunday in March to the first Sunday in November. The rest of the year Alaska is on AKST (UTC-9) and the offset grows to 17 hours. Singapore never observes daylight saving, so all variation comes from the Alaskan side. Whether you're scheduling cross-Pacific business calls or coordinating with Alaska-based contacts, our converter helps you find the workable overlap.
Common Use Cases for SGT to AKDT Conversion
Business & Work
- Scheduling summer calls between Singapore and Alaska-based partners
- Coordinating fisheries, energy or tourism operations across the North Pacific
- Planning conference calls with Anchorage offices during AKDT months
Personal & Travel
- Planning travel from Singapore to Alaska in the summer high season
- Coordinating with family and friends in Anchorage, Juneau or Fairbanks
- Scheduling virtual events bridging Southeast Asia and Alaska
Time Zone Information
Singapore Standard Time (SGT)
- UTC Offset: UTC+8
- IANA Timezone: Asia/Singapore
- Daylight Saving: No daylight saving time (consistent year-round)
- Major Cities: Singapore
- Coverage: Republic of Singapore
Alaska Daylight Time (AKDT)
- UTC Offset: UTC-8
- IANA Timezone: America/Anchorage
- Daylight Saving: Active from second Sunday in March to first Sunday in November (reverts to AKST UTC-9)
- Major Cities: Anchorage, Juneau, Fairbanks, Sitka, Wasilla
- Coverage: Most of the state of Alaska during daylight saving months
Quick Reference: SGT to AKDT
Remember: AKDT is 16 hours behind SGT. Outside the AKDT window (November to March) Alaska is on AKST and the gap is 17 hours. Always confirm which side of the international date line each contact is referring to.
Frequently Asked Questions
What is the time difference between SGT and AKDT?
Singapore Standard Time (SGT) is UTC+8, while Alaska Daylight Time (AKDT) is UTC-8. SGT is 16 hours ahead of AKDT. When it is 12:00 PM in Singapore, it is 8:00 PM the previous day in Anchorage.
When is AKDT in effect?
AKDT applies from the second Sunday in March to the first Sunday in November. Outside that window Alaska is on AKST (UTC-9) and the gap to SGT grows to 17 hours.
Does Singapore observe daylight saving time?
No. Singapore stays on SGT (UTC+8) year-round. Any seasonal change in the SGT-AKDT offset is driven entirely by Alaska switching between AKST and AKDT.
What are the best times for SGT-AKDT business calls?
The 16-hour gap leaves a narrow overlap. Late Singapore evening (8:00 to 10:00 PM SGT) aligns with Alaskan morning (4:00 to 6:00 AM AKDT). For a more humane Alaskan time, early Singapore morning (6:00 to 8:00 AM SGT) reaches the previous Alaska afternoon (2:00 to 4:00 PM AKDT).
Which countries or regions use AKDT?
AKDT covers most of the state of Alaska in the United States during daylight saving months. Major cities include Anchorage, Juneau, Fairbanks, Sitka and Wasilla. The far-western Aleutian Islands use HDT/HST.
Which countries or regions use SGT?
Singapore Standard Time is used only in the Republic of Singapore. UTC+8 is shared with Malaysia, Western Australia, Hong Kong, the Philippines and most of mainland China.
Pro Tips
- • AKDT is 16 hours behind SGT — subtract 16 hours from Singapore time to get Alaska time during daylight saving months.
- • Always note the date. A Singapore daytime call almost always lands on the previous calendar day in Alaska.
- • Outside AKDT (November to March) the offset becomes 17 hours. Verify the Alaska date and time near transition weekends.
- • Singapore late evenings or very early mornings give the only reasonable overlap with Alaskan working hours.
- • Use IANA identifiers Asia/Singapore and America/Anchorage in calendars to handle the AKST/AKDT switch automatically.
- • For asynchronous work the 16-hour gap is actually convenient — work handed off at the end of one team's day arrives at the start of the other team's day.