PST to IRDT Converter
IRDT is not used on this date.
This converter uses IRST (UTC+3:30), as in Tehran.
Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
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.
PST (US winter time, UTC-8) and IRDT examples
These examples always use PST (UTC-8) and IRDT (UTC+4:30). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
PST is 12 hours and 30 minutes behind IRDT.
PST is US Pacific winter time (early November to mid-March). The rest of the year Los Angeles uses PDT (UTC-7), one hour later. For Pacific Time that follows daylight saving time, use PT to IRDT. For daylight-time examples, use PDT to IRST.
How the time difference changes
For most of the year, PDT is 10 hours and 30 minutes behind IRST. From Nov 1, 2026 to Mar 14, 2027, PST is 11 hours and 30 minutes behind IRST.
For most of the year, working hours of 9:00 am to 5:00 pm in PDT 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 PST 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 PDT 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 PST correspond to 20:30 to 04:30 (next day) in IRST.
Compare PST time with IRDT 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
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
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Pacific Standard Time
Offset: PST is 8 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Canada, Mexico, United States
Principal Cities: The largest city in the PST 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
Today the shaded areas are on UTC−7 (PDT).
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Pacific Daylight Time (PDT).
End: Pacific Standard Time (PST) ended on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.
Start: Pacific Standard Time (PST) starts on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.
PST 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 PST
- U - short form of 'Uniform'
- America/Ensenada
- America/Los_Angeles
- America/Santa_Isabel
- America/Tijuana
- America/Vancouver
- Canada/Pacific
- Mexico/BajaNorte
- PST8PDT
- US/Pacific
- Pacific Standard Time - UTC -8
- Pitcairn Standard Time - UTC -8
- AKDT - Alaska Daylight Time
- PST - Pacific Standard Time
- PT - Pacific Time
- PST - Pitcairn Standard Time
- U - Uniform Time Zone
Iran Daylight Time
Offset: IRDT is 4 hours and 30 minutes ahead of Greenwich Mean Time (GMT).
IRDT representations, usage and related time zones
- +0430 - basic
- +04:30 - extended
- +0430 - sign character (+) followed by a four digit time providing hours (04) and minutes (30) of the offset. Indicates an offset of four hours and thirty minutes to the east of the zero meridian.
- AFT - Afghanistan Time
- IRDT - Iran Daylight Time