PT to IRST Converter
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Quick answers
Selected conversion
5:00 am05:00 PDT (UTC-7), Oct 14, 2026 = 3:30 pm15:30 IRST (UTC+3:30), Oct 14, 2026
PDT is 10 hours and 30 minutes behind IRST.
How the time difference changes
For most of the year, PT is 10 hours and 30 minutes behind IRST. From Nov 1, 2026 to Mar 14, 2027, PT is 11 hours and 30 minutes behind IRST.
For most of the year, working hours of 9:00 am to 5:00 pm in PT correspond to 7:30 pm to 3:30 am (next day) in IRST. At other times of the year, working hours of 9:00 am to 5:00 pm in PT correspond to 8:30 pm to 4:30 am (next day) in IRST.For most of the year, working hours of 09:00 to 17:00 in PT correspond to 19:30 to 03:30 (next day) in IRST. At other times of the year, working hours of 09:00 to 17:00 in PT correspond to 20:30 to 04:30 (next day) in IRST.
Compare PT time with IRST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Pacific Daylight Time is 10 hours and 30 minutes behind Iran Standard Time.
5:00 am05:00 in PDT is 3:30 pm15:30 in IRST
PDT to IRST call time
Best time for a conference call or a meeting is between 7:30am-8:30am07:30-08:30 in PDT which corresponds to 6pm-7pm18:00-19:00 in IRST. Their 9am–5pm09:00–17:00 working hours do not overlap; this is a suggested compromise.
5:00 am05:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
3:30 pm15:30 Iran Standard Time (IRST). Offset UTC +3:30 hours
5:00 am05:00 PDT / 3:30 pm15:30 IRST
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| PT | IRST |
|---|---|
| 10:30am | |
| 11:30am | |
| 12:30pm | |
| 1:30pm | |
| 2:30pm | |
| 3:30pm | |
| 4:30pm | |
| 5:30pm | |
| 6:30pm | |
| 7:30pm | |
| 8:30pm | |
| 9:30pm | |
| 10:30pm | |
| 11:30pm | |
| 12:30am next day | |
| 1:30am next day | |
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| 5:30am next day | |
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| 10:30 | |
| 11:30 | |
| 12:30 | |
| 13:30 | |
| 14:30 | |
| 15:30 | |
| 16:30 | |
| 17:30 | |
| 18:30 | |
| 19:30 | |
| 20:30 | |
| 21:30 | |
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| 23:30 | |
| 00:30 next day | |
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| 08:30 next day | |
| 09:30 next day |
Pacific Time
Pacific Time (PT) is a general term used to describe the areas that observe either the Pacific Standard Time (PST) or Pacific Daylight Time (PDT) in the United States and Canada. PT also called Pacific Coast Time. PT is not static but switches between PDT and PST.
Territories observing the Pacific Time Zone are primarily in North America. It runs through the western part of Canada, the United States and the Northwestern part of Mexico.
Countries using this time zone: Canada, Mexico, United States.
Principal Cities: The largest city in the PT time zone is Los Angeles in the United States, with about 3.821 million people. Other major cities in this time zone include Tijuana, San Diego, Mexicali, San Jose.
French: HNP - Heure Normale du Pacifique
Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste
PT representations, usage and related time zones
- -08 - basic short
- -0800 - basic
- -08:00 - extended
- -0800 - sign character (-) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the west of the zero meridian.
- Uniform - Military abbreviation for PT
- U - short form of 'Uniform'
- AKDT - Alaska Daylight Time
- PST - Pacific Standard Time
- PT - Pacific Time
- PST - Pitcairn Standard Time
- U - Uniform Time Zone
Iran Standard Time
Offset: IRST is 3 hours and 30 minutes ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Iran
Principal Cities: The largest city in the IRST time zone is Tehran in Iran, with about 7.153 million people. Other major cities in this time zone include Mashhad, Isfahan, Karaj, Tabriz.
Daylight Saving: Clocks in Iran Standard Time (IRST) do not change for daylight saving time, so IRST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
IRST representations, usage and related time zones
- +0330 - basic
- +03:30 - extended
- +0330 - sign character (+) followed by a four digit time providing hours (03) and minutes (30) of the offset. Indicates an offset of three hours and thirty minutes to the east of the zero meridian.