SST to PDT Converter
Convert time between Samoa Standard Time (SST) and Pacific Daylight Time (PDT)
Samoa Standard Time (SST)
Pacific Daylight Time (PDT)
Time Difference
Pacific Daylight Time (PDT) is 0 hours ahead of Samoa Standard Time (SST)
Select Date
Select Time
Quick Reference
| SST | PDT |
|---|---|
| 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 |
| 13:00 | 17:00 |
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 PDT Time Conversion
Converting time between Samoa Standard Time (SST) and Pacific Daylight Time (PDT) bridges the South Pacific and the US West Coast. SST is UTC-11 and stays constant year-round (American Samoa does not observe daylight saving time), while PDT is UTC-7. That makes PDT 4 hours ahead of SST during the US daylight saving period — from the second Sunday in March to the first Sunday in November. Outside that window the West Coast is on PST (UTC-8) and the gap shrinks to 3 hours.
This converter uses the IANA timezone database (America/Los_Angeles) to handle DST transitions automatically. Whether you're booking a call between Pago Pago and Los Angeles, San Francisco, or Vancouver during the summer months, or coordinating with West Coast teams, the tool removes the manual offset arithmetic.
Common Use Cases for SST to PDT Conversion
Business & Work
- Scheduling video calls between American Samoa and Los Angeles, San Francisco, or Seattle in summer
- Coordinating Pacific–US West Coast remote team handoffs
- Planning conference calls that bridge Samoan and Pacific working hours
Personal & Travel
- Calling family on the US West Coast or in British Columbia from American Samoa
- Planning flight connections via Los Angeles, San Francisco, or Honolulu
- Watching live MLB, NBA, or NFL games streamed during American summer
Time Zone Information
Samoa Standard Time (SST)
- UTC Offset: UTC-11
- IANA Timezone: Pacific/Pago_Pago
- Daylight Saving: None - American Samoa does not observe daylight saving time
- Major Cities: Pago Pago, Tafuna, Nu'uuli, Faleniu, Aua
- Coverage: American Samoa and Midway Atoll
Pacific Daylight Time (PDT)
- UTC Offset: UTC-7
- IANA Timezone: America/Los_Angeles
- Daylight Saving: Second Sunday in March to first Sunday in November (PDT)
- Major Cities: Los Angeles, San Francisco, Seattle, Portland, Vancouver
- Coverage: US Pacific time zone and British Columbia during summer months
Quick Reference: SST to PDT
Remember: PDT is 4 hours ahead of SST. Outside US daylight saving (early November to mid-March) the West Coast is on PST (UTC-8) and the gap is 3 hours.
Frequently Asked Questions
What is the time difference between SST and PDT?
Samoa Standard Time (SST) is UTC-11, while Pacific Daylight Time (PDT) is UTC-7. PDT is 4 hours ahead of SST. When it is 12:00 PM in Pago Pago, it is 4:00 PM the same day in Los Angeles.
When does this SST to PDT conversion apply?
It applies during US daylight saving, from the second Sunday in March to the first Sunday in November. Outside that window the West Coast is on PST (UTC-8) and the gap drops to 3 hours. American Samoa stays on SST (UTC-11) year-round.
How does the time difference change throughout the year?
The gap is 4 hours during PDT (mid-March to early November) and 3 hours during PST (early November to mid-March). American Samoa never observes daylight saving, so any seasonal change comes from the US side.
What are the best times for SST–PDT business calls?
Morning SST aligns with afternoon PDT. For example, 9:00–11:00 AM SST is 1:00–3:00 PM PDT, fitting comfortably inside Los Angeles, San Francisco, or Seattle working hours.
Which countries and regions use PDT?
PDT is observed across the US Pacific time zone in summer, including Los Angeles, San Francisco, Seattle, Portland, and Las Vegas. British Columbia (Vancouver) and the Yukon also use PDT or equivalent during summer.
Which countries and regions use SST?
Samoa Standard Time (UTC-11) is used in American Samoa and the uninhabited Midway Atoll. The independent state of Samoa is on UTC+13, on the opposite side of the international date line. Major American Samoa locations include Pago Pago, Tafuna, and Nu’uuli.
Pro Tips
- • PDT is 4 hours ahead of SST during US summer; Pago Pago noon is 4:00 PM in Los Angeles.
- • When the West Coast switches to PST in early November the gap drops to 3 hours; re-pin recurring meetings.
- • Morning Pago Pago aligns with mid-afternoon West Coast — a strong overlap for live calls.
- • PDT crossings to next-day happen at 8:00 PM SST and later — confirm the date when scheduling.
- • American Samoa never observes daylight saving, so any seasonal shift is from the US side.
- • For one-off calls, double-check the IANA zones (Pacific/Pago_Pago, America/Los_Angeles) in your calendar tool.