Iran to PDT
-10h 30mIran
IRSTSOURCEPDT
PDTGreen rows indicate typical business hours (9 AM - 5 PM)
IRST and PDT on the World Map
The map below highlights the IRST (Iran Standard Time) and PDT (Pacific Daylight Time) timezone regions across the globe.
IRST – Iran Standard Time
UTC+03:30Iran Standard Time (IRST) is the time zone for Iran, 3 hours and 30 minutes ahead of UTC.
- •IRST is one of only a few time zones with a 30-minute offset.
- •Iran observes daylight saving time, switching to IRDT (UTC+04:30).
- •Tehran has a metropolitan population of over 16 million.
PDT – Pacific Daylight Time
UTC-07:00Pacific Daylight Time (PDT) is the daylight saving offset on the US/Canada Pacific coast, 7 hours behind UTC.
- •PDT aligns with MST at UTC-07:00.
- •Tech company earnings calls often reference PDT/PST times.
Time Conversion Guide: Iran to PDT
Iran runs on Iran Standard Time (IRST) at UTC+03:30. PDT runs on Pacific Daylight Time (PDT) at UTC-07:00. That puts Iran 10 hours 30 minutes behind PDT — a difference of -10h 30m at the current offsets.
In practice, when it is 9:00 AM in Iran it is 10:30 PM in PDT on the previous day. Midnight in Iran is 1:30 PM in PDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Iran to PDT time conversion table
| Iran (IRST) | PDT (PDT) | Day |
|---|---|---|
| 12:00 AM | 1:30 PM | previous day |
| 6:00 AM | 7:30 PM | previous day |
| 7:00 AM | 8:30 PM | previous day |
| 8:00 AM | 9:30 PM | previous day |
| 9:00 AM | 10:30 PM | previous day |
| 12:00 PM | 1:30 AM | same day |
| 3:00 PM | 4:30 AM | same day |
| 5:00 PM | 6:30 AM | same day |
| 6:00 PM | 7:30 AM | same day |
| 9:00 PM | 10:30 AM | same day |
Why people convert Iran to PDT time
- Scheduling a call from Iran to PDT: a 10:00 AM start in Iran lands at 11:30 PM in PDT the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -10h 30m gap: Iran and PDT have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in PDT is 10:30 PM in Iran.
- Keeping family and friends in sync: knowing that 8:00 PM in Iran is 9:30 AM in PDT makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM IRST" is unambiguous; "3 PM" across a -10h 30m gap is not.
- With a -10h 30m gap there is no shared 9-to-5 window, so alternate the early start: one week Iran takes the early slot, the next week PDT does.
About IRST (Iran Standard Time)
Iran Standard Time (IRST) is one of the few time zones with a 30-minute offset. Iran observes daylight saving time (IRDT, UTC+04:30) from late March to late September. Tehran, the capital, is one of the largest cities in the Middle East.
About PDT (Pacific Daylight Time)
Pacific Daylight Time (PDT) is observed from March to November on the Pacific coast. During PDT, the west coast is 7 hours behind UTC and only 2 hours behind the east coast's EDT.
Best time to call between Iran and PDT
With a -10h 30m offset there is no overlap inside a normal 9 AM – 5 PM day. PDT opens at 9:00 AM PDT, which is 10:30 PM in Iran, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Iran and PDT have no shared working hours because of the -10h 30m gap. Teams need to alternate early starts or rely on asynchronous handovers.
Iran is 10 hours 30 minutes behind PDT (IRST UTC+03:30 → PDT UTC-07:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Iran
Does not observe DST
PDT
☀ Currently in DST
Standard: UTC-08:00 · DST: UTC-07:00
Clocks fall back on Sun, Nov 1, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Iran and PDT?
Iran (IRST, UTC+03:30) is 10 hours 30 minutes behind PDT (PDT, UTC-07:00). The gap is currently -10h 30m.
How do I convert Iran time to PDT time?
Add -10h 30m to Iran local time. For example, 9:00 AM in Iran is 10:30 PM in PDT (previous day).
What time is it in PDT right now?
PDT uses PDT at UTC-07:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -10h 30m offset from Iran.
What is the best time to call PDT from Iran?
There is no shared working-hours window because of the -10h 30m gap. The closest option is 1:00 PM in Iran, which is 2:30 AM in PDT.
Which is behind, Iran or PDT?
Iran is 10 hours 30 minutes behind PDT. When it is 12:00 PM in Iran it is 1:30 AM in PDT.
Do Iran and PDT use different time zones?
Iran (Iran) uses IRST at UTC+03:30, while PDT uses PDT at UTC-07:00. The IANA identifiers are Asia/Tehran and America/Los_Angeles.
Does daylight saving time affect the Iran–PDT difference?
Neither zone observes daylight saving time, so the -10h 30m offset between Iran and PDT is fixed all year.
Which other cities share Iran's time zone?
IRST also covers Tehran, Isfahan, Mashhad, Tabriz, Shiraz, Karaj.
Which countries use IRST, Iran's zone?
IRST is used in Iran.
Is there a day difference between Iran and PDT?
Not normally. The -10h 30m gap only pushes the date over the previous day.
What is the time difference between Iran and PDT?
PDT is -10h 30m from Iran.
What timezone is Iran in?
Iran operates on its local timezone.
What timezone is PDT in?
PDT operates on its local timezone.
Which countries use IRST (Iran Standard Time)?
IRST is used in Iran.
Does IRST observe daylight saving time?
Yes, IRST switches to IRDT during summer months.
What are some interesting facts about IRST?
IRST is one of only a few time zones with a 30-minute offset. Iran observes daylight saving time, switching to IRDT (UTC+04:30).
Which cities are in the PDT timezone?
Major cities in the PDT timezone include Los Angeles, San Francisco, Seattle, Vancouver, Portland.
What is the UTC offset for PDT?
Pacific Daylight Time (PDT) is at UTC-07:00. During daylight saving time, it shifts to PST.
What should I know about the PDT timezone?
PDT aligns with MST at UTC-07:00. Tech company earnings calls often reference PDT/PST times.
When is it midnight in Iran, what time is it in PDT?
When it is 12:00 AM (midnight) in Iran (IRST), it is -10h 30m later in PDT (PDT).
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