IRST to PDT Converter
PDT is not used on this date
This converter uses PST (GMT -8), the offset Los Angeles uses on this date. Open the PST converter.Compare IRST time with PDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Iran Standard Time is 11 hours and 30 minutes ahead of Pacific Standard Time
3:30 pm15:30 in IRST is 4:00 am04:00 in PST
IRST to PST call time
Best time for a conference call or a meeting is between 6:30pm-7:30pm in IRST which corresponds to 7am-8am in PST
3:30 pm15:30 Iran Standard Time (IRST). Offset UTC +3:30 hours
4:00 am04:00 Pacific Standard Time (PST). Offset UTC -8:00 hours
3:30 pm15:30 IRST / 4:00 am04:00 PST
| IRST | PST |
|---|---|
| 12am (midnight) | 12:30 pm |
| 1am | 1:30 pm |
| 2am | 2:30 pm |
| 3am | 3:30 pm |
| 4am | 4:30 pm |
| 5am | 5:30 pm |
| 6am | 6:30 pm |
| 7am | 7:30 pm |
| 8am | 8:30 pm |
| 9am | 9:30 pm |
| 10am | 10:30 pm |
| 11am | 11:30 pm |
| 12pm (noon) | 12:30 am |
| 1pm | 1:30 am |
| 2pm | 2:30 am |
| 3pm | 3:30 am |
| 4pm | 4:30 am |
| 5pm | 5:30 am |
| 6pm | 6:30 am |
| 7pm | 7:30 am |
| 8pm | 8:30 am |
| 9pm | 9:30 am |
| 10pm | 10:30 am |
| 11pm | 11:30 am |
| 00:00 | 12:30 |
| 01:00 | 13:30 |
| 02:00 | 14:30 |
| 03:00 | 15:30 |
| 04:00 | 16:30 |
| 05:00 | 17:30 |
| 06:00 | 18:30 |
| 07:00 | 19:30 |
| 08:00 | 20:30 |
| 09:00 | 21:30 |
| 10:00 | 22:30 |
| 11:00 | 23:30 |
| 12:00 | 00:30 |
| 13:00 | 01:30 |
| 14:00 | 02:30 |
| 15:00 | 03:30 |
| 16:00 | 04:30 |
| 17:00 | 05:30 |
| 18:00 | 06:30 |
| 19:00 | 07:30 |
| 20:00 | 08:30 |
| 21:00 | 09:30 |
| 22:00 | 10:30 |
| 23:00 | 11:30 |
Iran Standard Time
Offset: IRST is 3 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
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.
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.
Pacific Daylight Time
Offset: PDT is 7 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Canada, Mexico, United States
Principal Cities: The largest city in the PDT time zone is Los Angeles in the United States, with about 3.793 million people. Other major cities in this time zone include Vancouver, Tijuana, San Diego, San Jose.
French: HAP - Heure Avancée du Pacifique
Spanish: PT - Zona Noroeste
Daylight Saving: Pacific Daylight Time (PDT) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Pacific Standard Time (PST).
End: Pacific Daylight Time (PDT) ended on Sunday, November 2, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am local standard time instead. Daylight saving ends annually on the first Sunday of November
Start: Pacific Daylight Time (PDT) starts on Sunday, March 8, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am. Daylight saving starts annually on the second Sunday of March
PDT representations, usage and related time zones
- -07 - basic short
- -0700 - basic
- -07:00 - extended
- -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates an offset of seven hours to the west of the zero meridian.
- Tango - Military abbreviation for PDT
- T - short form of 'Tango'
- America/Ensenada
- America/Los_Angeles
- America/Santa_Isabel
- America/Tijuana
- America/Vancouver
- Canada/Pacific
- Mexico/BajaNorte
- PST8PDT
- US/Pacific
- MST - Mountain Standard Time
- PDT - Pacific Daylight Time
- YST - Yukon Standard Time
- T - Tango Time Zone