IRST to PST converter

Iran Time (Tehran) to Pacific Time (Los Angeles, San Francisco, Seattle, Vancouver).

IRST3:37 AMSat 31 Oct 2026

→

PST5:07 PMFri 30 Oct 2026

PST is 10 h 30 min behind IRST.

Pick a time in IRST

⇄ PST to IRST

9:00 AM IRST = 10:30 PM PST previous day

Best time to meet

No hour falls inside 9 AM to 5 PM in both places, so one side always meets outside office hours.

IRST to PST time table

For 31 Oct 2026. Green rows: both sides between 9 AM and 5 PM.

IRST	PST
12:00 AM IRST	1:30 PM PST previous day
1:00 AM IRST	2:30 PM PST previous day
2:00 AM IRST	3:30 PM PST previous day
3:00 AM IRST	4:30 PM PST previous day
4:00 AM IRST	5:30 PM PST previous day
5:00 AM IRST	6:30 PM PST previous day
6:00 AM IRST	7:30 PM PST previous day
7:00 AM IRST	8:30 PM PST previous day
8:00 AM IRST	9:30 PM PST previous day
9:00 AM IRST	10:30 PM PST previous day
10:00 AM IRST	11:30 PM PST previous day
11:00 AM IRST	12:30 AM PST
12:00 PM IRST	1:30 AM PST
1:00 PM IRST	2:30 AM PST
2:00 PM IRST	3:30 AM PST
3:00 PM IRST	4:30 AM PST
4:00 PM IRST	5:30 AM PST
5:00 PM IRST	6:30 AM PST
6:00 PM IRST	7:30 AM PST
7:00 PM IRST	8:30 AM PST
8:00 PM IRST	9:30 AM PST
9:00 PM IRST	10:30 AM PST
10:00 PM IRST	11:30 AM PST
11:00 PM IRST	12:30 PM PST

Quick answers

9:00 AM IRST = 10:30 PM PST (previous day)
12:00 PM IRST = 1:30 AM PST
3:00 PM IRST = 4:30 AM PST
5:00 PM IRST = 6:30 AM PST
9:00 AM PST = 7:30 PM IRST
12:00 PM PST = 10:30 PM IRST
5:00 PM PST = 3:30 AM IRST (next day)

Does the gap change during the year?

Yes, because of daylight saving. Until 1 Nov 2026: PST is 10 h 30 min behind IRST. From 1 Nov 2026 to 14 Mar 2027: PST is 11 h 30 min behind IRST. From 14 Mar 2027 to 7 Nov 2027: PST is 10 h 30 min behind IRST.

IRST does not change its clocks. PST next changes its clocks on 1 Nov 2026 (back 1 h, to UTC−8), then on 14 Mar 2027 (forward 1 h, to UTC−7).

About IRST and PST

IRST here means Iran Time, the clock in Tehran. Right now it is UTC+3:30. It has no daylight saving.

PST here means Pacific Time, the clock in Los Angeles, San Francisco, Seattle, Vancouver. Right now it is UTC−7. Strictly, PST is the winter name; in summer these places use PDT. This page follows their real clock all year.

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