Use this IRST to PST time converter to compare Iran and US West Coast time instantly. PST is 11 hours and 30 minutes behind IRST, so 9:00 AM IRST becomes 9:30 PM (previous day) PST and 5:00 PM IRST becomes 5:30 AM PST. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.
Use this IRST to PST converter to compare Iran and US West Coast time, check the 11 hours and 30 minutes gap, and confirm the right slot for calls, handoffs, and deadlines. Find the best overlap for calls and meetings.
Converting between Iran Standard Time and Pacific Standard Time means accounting for a 11 hours and 30 minutes gap — here's how to do it in under 10 seconds with no sign-up.
Pick the date and time in Iran Standard Time (UTC +3:30) that you want to convert. Hit "Now" to load the current IRST time instantly, or use "+1h" to step forward and compare.
The equivalent Pacific Standard Time (UTC -8) time appears immediately. Since PST is 11 hours and 30 minutes behind of IRST, most daytime conversions stay on the same calendar day.
Click "Copy Time" to grab the PST result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — useful when Daylight Saving Time changes the gap.
With 11 hours and 30 minutes between IRST and PST, business-hours overlap is limited. This tool instantly shows which hours work on both sides, so you can lock in a meeting without a chain of "does 3 PM work for you?" emails.
Late-night IRST times can land on a different date in PST because of the 11 hours and 30 minutes offset. The converter labels "next day" or "previous day" next to the result so you never send a message a day early or miss a deadline.
The half-hour offset between IRST (UTC +3:30) and PST (UTC -8) already makes mental math tricky — add Daylight Saving Time and the gap can shift further. This converter uses live UTC offsets, so you're always accurate.
Product launches, sports matches, and webinars are often announced in IRST. Convert the event time to PST so you know exactly when to tune in — with a 11 hours and 30 minutes difference, a morning event in Iran hits the evening in United States.
Quick-reference conversion table covering every hour of the day at a glance.
Iran Standard Time to Pacific Standard Time full day schedule
| Iran Standard Time | Pacific Standard Time |
|---|---|
| 12:00 AM |
12:30 PM
(previous day)
|
| 1:00 AM |
1:30 PM
(previous day)
|
| 2:00 AM |
2:30 PM
(previous day)
|
| 3:00 AM |
3:30 PM
(previous day)
|
| 4:00 AM |
4:30 PM
(previous day)
|
| 5:00 AM |
5:30 PM
(previous day)
|
| 6:00 AM |
6:30 PM
(previous day)
|
| 7:00 AM |
7:30 PM
(previous day)
|
| 8:00 AM |
8:30 PM
(previous day)
|
| 9:00 AM |
9:30 PM
(previous day)
|
| 10:00 AM |
10:30 PM
(previous day)
|
| 11:00 AM |
11:30 PM
(previous day)
|
| 12:00 PM |
12:30 AM
|
| 1:00 PM |
1:30 AM
|
| 2:00 PM |
2:30 AM
|
| 3:00 PM |
3:30 AM
|
| 4:00 PM |
4:30 AM
|
| 5:00 PM |
5:30 AM
|
| 6:00 PM |
6:30 AM
|
| 7:00 PM |
7:30 AM
|
| 8:00 PM |
8:30 AM
|
| 9:00 PM |
9:30 AM
|
| 10:00 PM |
10:30 AM
|
| 11:00 PM |
11:30 AM
|
US West Coast — home of Silicon Valley, LA entertainment, and the SaaS / VC ecosystem. Business hours 9 AM – 6 PM PT. Startup / tech culture stretches later than East Coast: it's common for calendar invites from West Coast product teams to run through 8 PM PT.
Explore more IRST conversions for major business and travel corridors. Each page includes a 24-hour chart, time difference summary, and meeting overlap guidance.
Find the time difference from any major zone into Pacific Standard Time. Use these pages when scheduling with United States from a different region.
