SST to HKT Converter
Convert time between Samoa Standard Time (SST) and Hong Kong Time (HKT)
Samoa Standard Time (SST)
Hong Kong Time (HKT)
Time Difference
Hong Kong Time (HKT) is 0 hours ahead of Samoa Standard Time (SST)
Select Date
Select Time
Quick Reference
| SST | HKT |
|---|---|
| 15:00 | 10:00 |
| 17:00 | 12:00 |
| 19:00 | 14:00 |
| 21:00 | 16:00 |
| 23:00 | 18:00 |
| 01:00 | 20:00 |
| 03:00 | 22:00 |
| 05:00 | 00:00 |
| 07:00 | 02:00 |
| 09:00 | 04:00 |
| 11:00 | 06:00 |
| 13:00 | 08:00 |
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 SST to HKT Time Conversion
Converting time between Samoa Standard Time (SST) and Hong Kong Time (HKT) is a fixed 19-hour calculation. SST is UTC-11 year-round, and HKT is UTC+8 year-round, so Hong Kong is always 19 hours ahead of Pago Pago and the rest of American Samoa. Neither side observes daylight saving time, so the offset never shifts. Note that SST here refers to American Samoa, not Singapore — Singapore uses SGT (UTC+8).
This time zone converter uses the IANA timezone database (Pacific/Pago_Pago and Asia/Hong_Kong) for accurate calculations. SST sits across the International Date Line from Hong Kong, so most American Samoan daytime hours fall on the next calendar day in Hong Kong. Independent Samoa (the country, not the territory) switched to UTC+13 in 2011 and now uses WSST/WSDT — it is a full day ahead of American Samoa despite being a few miles apart geographically.
Common Use Cases for SST to HKT Conversion
Business & Work
- Scheduling Pacific-region calls between Pago Pago and Hong Kong
- Coordinating shipping, fisheries and government workflows between American Samoa and Hong Kong
- Planning logistics across the International Date Line
Personal & Travel
- Planning travel from American Samoa to Hong Kong via Hawaii or Auckland
- Coordinating with family and friends in Hong Kong from Pago Pago
- Scheduling virtual events with Hong Kong-based contacts
Time Zone Information
Samoa Standard Time (SST)
- UTC Offset: UTC-11
- IANA Timezone: Pacific/Pago_Pago
- Daylight Saving: No daylight saving time (consistent year-round)
- Major Cities: Pago Pago, Tafuna, Leone, Faleniu
- Coverage: American Samoa (US territory)
Hong Kong Time (HKT)
- UTC Offset: UTC+8
- IANA Timezone: Asia/Hong_Kong
- Daylight Saving: No daylight saving time (consistent year-round)
- Major Cities: Hong Kong, Kowloon, Tsuen Wan, Yuen Long
- Coverage: Hong Kong Special Administrative Region
Quick Reference: SST to HKT
Remember: HKT is 19 hours ahead of SST, year-round. American Samoan daytime falls on the next calendar day in Hong Kong — always label the date. SST here is American Samoa, not Singapore (Singapore uses SGT, UTC+8).
Frequently Asked Questions
Does SST mean Samoa or Singapore on this converter?
This page covers Samoa Standard Time (UTC-11, American Samoa). The abbreviation SST is sometimes assumed to mean Singapore, but Singapore uses SGT (UTC+8). If your contact is in Singapore, use the SGT to HKT converter (which has a 0-hour offset, not 19 hours).
What is the time difference between SST and HKT?
Samoa Standard Time (SST) is UTC-11, while Hong Kong Time (HKT) is UTC+8. HKT is 19 hours ahead of SST, year-round. When it is 12:00 PM in Pago Pago, it is 7:00 AM the next day in Hong Kong.
Does the offset change throughout the year?
No. Neither American Samoa nor Hong Kong observes daylight saving time. The 19-hour offset is permanent and never shifts.
What about Independent Samoa (the country)?
Independent Samoa switched from UTC-11 to UTC+13 in 2011 to align its workweek with Australia and New Zealand. It now uses WSST/WSDT and is a full day ahead of American Samoa despite being only a short flight away. This page covers American Samoa (the US territory, UTC-11).
Which countries or regions use SST?
SST covers American Samoa (a US territory). Major settlements include Pago Pago, Tafuna, Leone and Faleniu. The neighbouring sovereign nation of Samoa uses UTC+13 (WSST/WSDT) instead.
Which countries or regions use HKT?
Hong Kong Time is used in the Hong Kong Special Administrative Region. The same UTC+8 offset is shared with mainland China (CST), Taiwan, Singapore (SGT), the Philippines (PHT) and Western Australia (AWST), so many East Asian and ASEAN partners read the same clock.
Pro Tips
- • HKT is 19 hours ahead of SST — add 19 hours to Pago Pago time and roll the date forward.
- • SST here is American Samoa, not Singapore. Singapore uses SGT (UTC+8) with a 0-hour offset to HKT.
- • Most American Samoan daytime is the next calendar day in Hong Kong — always label the date.
- • Independent Samoa is now UTC+13 (a full 24 hours ahead of American Samoa despite the proximity).
- • Recorded webinars or async updates work better than live calls — the 19-hour gap is hostile to real-time overlap.
- • Use IANA identifiers Pacific/Pago_Pago and Asia/Hong_Kong in calendars for stable scheduling.