PDT to Iran
+10h 30mPDT
PDTSOURCEIran
IRSTGreen rows indicate typical business hours (9 AM - 5 PM)
PDT and IRST on the World Map
The map below highlights the PDT (Pacific Daylight Time) and IRST (Iran Standard Time) timezone regions across the globe.
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.
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.
Understanding the +10h 30m Gap: PDT vs Iran
PDT runs on Pacific Daylight Time (PDT) at UTC-07:00. Iran runs on Iran Standard Time (IRST) at UTC+03:30. That puts PDT 10 hours 30 minutes ahead of Iran — a difference of +10h 30m at the current offsets.
In practice, when it is 9:00 AM in PDT it is 7:30 PM in Iran. Midnight in PDT is 10:30 AM in Iran. Neither zone observes daylight saving time, so the offset between them stays constant all year.
PDT to Iran time conversion table
| PDT (PDT) | Iran (IRST) | Day |
|---|---|---|
| 12:00 AM | 10:30 AM | same day |
| 6:00 AM | 4:30 PM | same day |
| 7:00 AM | 5:30 PM | same day |
| 8:00 AM | 6:30 PM | same day |
| 9:00 AM | 7:30 PM | same day |
| 12:00 PM | 10:30 PM | same day |
| 3:00 PM | 1:30 AM | next day |
| 5:00 PM | 3:30 AM | next day |
| 6:00 PM | 4:30 AM | next day |
| 9:00 PM | 7:30 AM | next day |
Why people convert PDT to Iran time
- Scheduling a call from PDT to Iran: a 10:00 AM start in PDT lands at 8:30 PM in Iran, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +10h 30m gap: PDT and Iran 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 Iran is 7:30 PM in PDT.
- Coordinating a PDT-based team with Iran contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM PDT" 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 PDT takes the early slot, the next week Iran does.
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.
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.
Best time to call between PDT and Iran
With a +10h 30m offset there is no overlap inside a normal 9 AM – 5 PM day. Iran opens at 9:00 AM IRST, which is 7:30 PM in PDT, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
PDT and Iran have no shared working hours because of the +10h 30m gap. Teams need to alternate early starts or rely on asynchronous handovers.
PDT is 10 hours 30 minutes ahead of Iran (PDT UTC-07:00 → IRST UTC+03:30). 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
PDT
☀ Currently in DST
Standard: UTC-08:00 · DST: UTC-07:00
Clocks fall back on Sun, Nov 1, 2026
Iran
Does not observe DST
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 PDT and Iran?
PDT (PDT, UTC-07:00) is 10 hours 30 minutes ahead of Iran (IRST, UTC+03:30). The gap is currently +10h 30m.
How do I convert PDT time to Iran time?
Add +10h 30m to PDT local time. For example, 9:00 AM in PDT is 7:30 PM in Iran.
What time is it in Iran right now?
Iran uses IRST at UTC+03:30. Use the live converter at the top of this page — it updates in real time and already accounts for the +10h 30m offset from PDT.
What is the best time to call Iran from PDT?
There is no shared working-hours window because of the +10h 30m gap. The closest option is 1:00 PM in PDT, which is 11:30 PM in Iran.
Which is ahead, PDT or Iran?
PDT is 10 hours 30 minutes ahead of Iran. When it is 12:00 PM in PDT it is 10:30 PM in Iran.
Do PDT and Iran use different time zones?
PDT uses PDT at UTC-07:00, while Iran (Iran) uses IRST at UTC+03:30. The IANA identifiers are America/Los_Angeles and Asia/Tehran.
Does daylight saving time affect the PDT–Iran difference?
Neither zone observes daylight saving time, so the +10h 30m offset between PDT and Iran is fixed all year.
Which other cities share PDT's time zone?
PDT also covers Los Angeles, San Francisco, Seattle, Vancouver, Portland.
Which countries use PDT, PDT's zone?
PDT is used in United States (Pacific), Canada (British Columbia), Mexico (Baja California).
Is there a day difference between PDT and Iran?
Not normally. The +10h 30m gap only pushes the date over for late-evening times.
What is the time difference between PDT and Iran?
Iran is +10h 30m from PDT.
What timezone is PDT in?
PDT operates on its local timezone.
What timezone is Iran in?
Iran operates on its local timezone.
Which countries use PDT (Pacific Daylight Time)?
PDT is used in United States (Pacific), Canada (British Columbia), Mexico (Baja California).
Does PDT observe daylight saving time?
Yes, PDT switches to PST during summer months.
What are some interesting facts about PDT?
PDT aligns with MST at UTC-07:00. Tech company earnings calls often reference PDT/PST times.
Which cities are in the IRST timezone?
Major cities in the IRST timezone include Tehran, Isfahan, Mashhad, Tabriz, Shiraz, Karaj.
What is the UTC offset for IRST?
Iran Standard Time (IRST) is at UTC+03:30. During daylight saving time, it shifts to IRDT.
What should I know about the IRST timezone?
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).
When is it midnight in PDT, what time is it in Iran?
When it is 12:00 AM (midnight) in PDT (PDT), it is +10h 30m later in Iran (IRST).
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See every conversion from PDT →·See every conversion from Iran →