Seattle, WA, USA to Adelaide, Australia
Time Difference
PST (Pacific Standard Time) is 18 hours and 30 minutes behind ACDT (Australian Central Daylight Time)
4:00 am04:00 in Seattle, WA, USA is 10:30 pm22:30 in Adelaide, Australia
Seattle to Adelaide call time
Best time for a conference call or a meeting is between 2:30pm-5pm in Seattle which corresponds to 9am-11:30am in Adelaide (next day)
4:00 am04:00 PST (Pacific Standard Time) (Seattle, WA, USA). Offset UTC -8:00 hours
10:30 pm22:30 ACDT (Australian Central Daylight Time) (Adelaide, Australia). Offset UTC +10:30 hours
4:00 am04:00 Seattle, WA, USA / 10:30 pm22:30 Adelaide, Australia
| Seattle, WA, USA | Adelaide, Australia |
|---|---|
| 12am (midnight) | 6:30 pm |
| 1am | 7:30 pm |
| 2am | 8:30 pm |
| 3am | 9:30 pm |
| 4am | 10:30 pm |
| 5am | 11:30 pm |
| 6am | 12:30 am |
| 7am | 1:30 am |
| 8am | 2:30 am |
| 9am | 3:30 am |
| 10am | 4:30 am |
| 11am | 5:30 am |
| 12pm (noon) | 6:30 am |
| 1pm | 7:30 am |
| 2pm | 8:30 am |
| 3pm | 9:30 am |
| 4pm | 10:30 am |
| 5pm | 11:30 am |
| 6pm | 12:30 pm |
| 7pm | 1:30 pm |
| 8pm | 2:30 pm |
| 9pm | 3:30 pm |
| 10pm | 4:30 pm |
| 11pm | 5:30 pm |
| 00:00 | 18:30 |
| 01:00 | 19:30 |
| 02:00 | 20:30 |
| 03:00 | 21:30 |
| 04:00 | 22:30 |
| 05:00 | 23:30 |
| 06:00 | 00:30 |
| 07:00 | 01:30 |
| 08:00 | 02:30 |
| 09:00 | 03:30 |
| 10:00 | 04:30 |
| 11:00 | 05:30 |
| 12:00 | 06:30 |
| 13:00 | 07:30 |
| 14:00 | 08:30 |
| 15:00 | 09:30 |
| 16:00 | 10:30 |
| 17:00 | 11:30 |
| 18:00 | 12:30 |
| 19:00 | 13:30 |
| 20:00 | 14:30 |
| 21:00 | 15:30 |
| 22:00 | 16:30 |
| 23:00 | 17:30 |
Seattle Information
Time Zone
Abbreviation / Name
PDT - Pacific Daylight Time
PST - Pacific Standard Time
PST - Pacific Standard Time
UTC / GMT Offset
-7:00 hours during Pacific Daylight Time, currently in use.
-8:00 hours during Pacific Standard Time.
-8:00 hours during Pacific Standard Time.
Daylight Saving Time Change
+1:00 hour - DST is in use
Daylight Saving Time Starts
Sunday, March 8, 2026 at 2:00 am local time. DST starts annually on the 2nd Sunday of March. Clocks are turned forward 1 hour to Sunday, March 8, 2026 at 3:00 am local daylight time instead. Also called Spring Forward or Summer Time.Daylight Saving Time Ends
Sunday, November 1, 2026 at 2:00 am local time. DST ends annually on the 1st Sunday of November. Clocks are turned backward 1 hour to Sunday, November 1, 2026 at 1:00 am local standard time instead. Also called Fall Back or switch to Winter Time.Seattle Facts
Country
USA
State
Washington
Alternative Names
SEA, Seatl, Seattle, Seattlum, Siatl, Siatul, Siehtl, Sietl, Sietla, Sietlas, Sijetl, Siyaatil, Séatl, ciyattil, shiatoru, si'aitala, siaeteul, sietʼli, siyatal, siyatala, syatl, xi ya tu, Σιάτλ, Сиатъл, Сиетл, Сиэтл, Сијетл, Сіэтл, Сієтл, Սիեթլ, סיאטל, سياتل, سیئٹل, سیاتل, سیاٹل, सिअॅटल, सीऐटल, সিয়াটল, சியாட்டில், ಸಿಯಾಟಲ್, ซีแอตเทิล, სიეტლი, ስያትል, ស៊ីតថល, シアトル, 西雅圖, 시애틀
Population
684,451
Currency
Dollar (USD)
Geographic Coordinates
47° 36' N Latitude / 122° 19' W Longitude
International Dialing Code
+1
Adelaide Information
Time Zone
Abbreviation / Name
ACST - Australian Central Standard Time
ACDT - Australian Central Daylight Time
ACDT - Australian Central Daylight Time
UTC / GMT Offset
+9:30 hours during Australian Central Standard Time, currently in use.
+10:30 hours during Australian Central Daylight Time.
+10:30 hours during Australian Central Daylight Time.
Daylight Saving Time Change
+1:00 hour - DST is NOT in use
Daylight Saving Time Starts
Sunday, October 4, 2026 at 2:00 am local time. DST starts annually on the 1st Sunday of October. Clocks are turned forward 1 hour to Sunday, October 4, 2026 at 3:00 am local daylight time instead. Also called Spring Forward or Summer Time.Daylight Saving Time Ends
Sunday, April 5, 2026 at 3:00 am local time. DST ends annually on the 1st Sunday of April. Clocks are turned backward 1 hour to Sunday, April 5, 2026 at 2:00 am local standard time instead. Also called Fall Back or switch to Winter Time.Adelaide Facts
Country
Australia
Alternative Names
ADL, Adehlaida, Adelaida, Adelaidae, Adelaide, Adelaidis, Adelaidė, Adelajda, Adelajdo, Adelaïda, Adelaïde, Adelejd, Adelàida, Adélaïde, Edelaid, Tarndanya, Tarndarnya, a de lai de, adelaida, aderedo, adilaid, adiled, adlayd, adylyd, aedeulleideu, atileyit, edile'ida, edileda, Αδελαΐδα, Аделаидæ, Аделаида, Аделаїда, Аделейд, Аделејд, Адэлаіда, Ադելաիդա, אדלייד, آدلاید, أديليد, ئادېلايدې, ایڈیلیڈ, एडिलेड, ॲdaleda, ॲडलेड, એડિલેઇડ, அடிலெயிட், అడిలైడ్, ಅಡಿಲೇಡ್, അഡിലെയ്ഡ്, แอดิเลด, အက်ဒလိတ်မြို့, ადელაიდა, アデレード, 阿德来得, 阿德莱德, 애들레이드
Population
1,225,235
Currency
Dollar (AUD)
Geographic Coordinates
34° 55' S Latitude / 138° 35' E Longitude
International Dialing Code
+61