Washington, USA
PST
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Iran
IRST
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Compare Seattle time with Tehran time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

PST (Pacific Standard Time) is 11 hours and 30 minutes behind IRST (Iran Standard Time)
4:00 am04:00 in Seattle, WA, USA is 3:30 pm15:30 in Tehran, Iran

Seattle to Tehran call time
Best time for a conference call or a meeting is between 7am-8am in Seattle which corresponds to 6:30pm-7:30pm in Tehran

4:00 am04:00 PST (Pacific Standard Time) (Seattle, WA, USA). Offset UTC -8:00 hours
3:30 pm15:30 IRST (Iran Standard Time) (Tehran, Iran). Offset UTC +3:30 hours

4:00 am04:00 Seattle, WA, USA / 3:30 pm15:30 Tehran, Iran

Seattle, WA, USATehran, Iran
12am (midnight)11:30 am
1am12:30 pm
2am1:30 pm
3am2:30 pm
4am3:30 pm
5am4:30 pm
6am5:30 pm
7am6:30 pm
8am7:30 pm
9am8:30 pm
10am9:30 pm
11am10:30 pm
12pm (noon)11:30 pm
1pm12:30 am
2pm1:30 am
3pm2:30 am
4pm3:30 am
5pm4:30 am
6pm5:30 am
7pm6:30 am
8pm7:30 am
9pm8:30 am
10pm9:30 am
11pm10:30 am
00:0011:30
01:0012:30
02:0013:30
03:0014:30
04:0015:30
05:0016:30
06:0017:30
07:0018:30
08:0019:30
09:0020:30
10:0021:30
11:0022:30
12:0023:30
13:0000:30
14:0001:30
15:0002:30
16:0003:30
17:0004:30
18:0005:30
19:0006:30
20:0007:30
21:0008:30
22:0009:30
23:0010:30

Seattle Information

Time Zone

Abbreviation / Name
PDT - Pacific Daylight 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.
Daylight Saving Time Change
+1:00 hour - DST is in use
Daylight Saving Time Starts
Daylight saving time clock moves forward for one hour from 2am to 3amSunday, 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
Daylight saving time clock moves back for one hour from 2am to 1amSunday, 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

Tehran Information

Time Zone

Abbreviation / Name
IRST - Iran Standard Time
UTC / GMT Offset
+3:30 hours during Iran Standard Time, currently in use.

Tehran Facts

Country
Iran
Alternative Names
THR, Taekhran, Tahran, Techerane, Teera, Teerao, Teerã, Teerão, Tegeran, Teheran, Teherana, Teheranas, Teherano, Teherán, Teherāna, Tehran, Tehrano, Tekheran, Téhéran, de hei lan, teharan, teharana, tehelan, teheran, tehran, teirani, thran, thrn, thrwn, tihiran, tihran, Τεχεράνη, Тæхран, Тегеран, Техеран, Теҳрон, Թեհրան, טהראן, טהרן, تهران, تهرون, تِهران, تِهِرَن, تہران, طهران, ܛܗܪܐܢ, तेहरान, তেহরান, தெஹ்ரான், เตหะราน, ཏེ་ཧི་རན​།, თეირანი, ቴህራን, テヘラン, 德黑兰, 테헤란
Population
7,153,309
Currency
Rial (IRR)
Geographic Coordinates
35° 41' N Latitude / 51° 25' E Longitude
International Dialing Code
+98