Tehran to PST time conversion
PST is 11 hours 30 minutes behind Tehran.
PST is always UTC-8. Right now most places that use PST are on PDT (UTC-7): PDT is 10 hours 30 minutes behind Tehran.
Time difference with your location
Tehran is 3 hours 30 minutes ahead of UTC. Compare with your local time →
Choose a date and time
Choose the local time in Tehran to convert it to PST on that date.
Skipped clock-change times are unavailable; a repeated time uses its first occurrence.
24-hour conversion chart · Tehran → PST
This table converts each hour in Tehran to PST on 2026-10-21.
- Working hours
- Outside working hours
- Night hours
| Tehran | PST | Shared working hours |
|---|---|---|
| 00:0012:00 AM | 12:3012:30 PM -1 day | |
| 01:001:00 AM | 13:301:30 PM -1 day | |
| 02:002:00 AM | 14:302:30 PM -1 day | |
| 03:003:00 AM | 15:303:30 PM -1 day | |
| 04:004:00 AM | 16:304:30 PM -1 day | |
| 05:005:00 AM | 17:305:30 PM -1 day | |
| 06:006:00 AM | 18:306:30 PM -1 day | |
| 07:007:00 AM | 19:307:30 PM -1 day | |
| 08:008:00 AM | 20:308:30 PM -1 day | |
| 09:009:00 AM | 21:309:30 PM -1 day | |
| 10:0010:00 AM | 22:3010:30 PM -1 day | |
| 11:0011:00 AM | 23:3011:30 PM -1 day | |
| 12:0012:00 PM | 00:3012:30 AM | |
| 13:001:00 PM | 01:301:30 AM | |
| 14:002:00 PM | 02:302:30 AM | |
| 15:003:00 PM | 03:303:30 AM | |
| 16:004:00 PM | 04:304:30 AM | |
| 17:005:00 PM | 05:305:30 AM | |
| 18:006:00 PM | 06:306:30 AM | |
| 19:007:00 PM | 07:307:30 AM | |
| 20:008:00 PM | 08:308:30 AM | |
| 21:009:00 PM | 09:309:30 AM | |
| 22:0010:00 PM | 10:3010:30 AM | |
| 23:0011:00 PM | 11:3011:30 AM |
Quick conversion examples
These examples use Tehran (UTC+3:30) and PST (UTC-8); choosing a date applies the local clock changes.
Conversion formula: PST = Tehran − 11h30 · PDT = Tehran − 10h30.
| Tehran | PST |
|---|---|
| 6:00 AM Tehran | = 6:30 PM PST (-1 day) |
| 7:00 AM Tehran | = 7:30 PM PST (-1 day) |
| 8:00 AM Tehran | = 8:30 PM PST (-1 day) |
| 9:00 AM Tehran | = 9:30 PM PST (-1 day) |
| 10:00 AM Tehran | = 10:30 PM PST (-1 day) |
| 12:00 PM Tehran | = 12:30 AM PST |
| 3:00 PM Tehran | = 3:30 AM PST |
| 5:00 PM Tehran | = 5:30 AM PST |
| 6:00 PM Tehran | = 6:30 AM PST |
| 8:00 PM Tehran | = 8:30 AM PST |
Overlapping meeting hours
The 08:00–18:00 working days in Tehran and PST do not overlap on 2026-10-21.
Clock changes on both sides, 2026–2028
Tehran and PST have the following local clock changes in 2026–2028; all times in the table are local to that side.
| Year | Tehran | PST |
|---|---|---|
| 2026 | No clock changes; UTC+3:30 all year. | · 02:00 → 03:00 · 02:00 → 01:00 |
| 2027 | No clock changes; UTC+3:30 all year. | · 02:00 → 03:00 · 02:00 → 01:00 |
| 2028 | No clock changes; UTC+3:30 all year. | · 02:00 → 03:00 · 02:00 → 01:00 |
At the start of 2026, PST is 11 hours 30 minutes behind Tehran. The difference changes during the following periods.
- From 2026-03-08 13:30 Tehran until 2026-11-01 12:30 Tehran, PDT is 10 hours 30 minutes behind Tehran.
- From 2027-03-14 13:30 Tehran until 2027-11-07 12:30 Tehran, PDT is 10 hours 30 minutes behind Tehran.
- From 2028-03-12 13:30 Tehran until 2028-11-05 12:30 Tehran, PDT is 10 hours 30 minutes behind Tehran.
Frequently asked questions
What time is 9 AM Tehran in PST?
9:00 AM Tehran = 9:30 PM PST (-1 day), using UTC+3:30 and UTC-8. Choose a date above for the seasonal local time.
Does the time difference between Tehran and PST change during the year?
Yes. During 2026–2028: PST is 11 hours 30 minutes behind Tehran; PST is 10 hours 30 minutes behind Tehran. The clock-change table gives the dates for both sides.
How do I tell whether it is day or night in PST?
Read the PST clock above: this guide counts 06:00–18:00 local time as daytime and the rest as nighttime, without using sunrise and sunset.
What is the best time to call between Tehran and PST?
The 08:00–18:00 working days in Tehran and PST do not overlap.
What is the time difference between Tehran and PST now?
Right now, PST is 11 hours 30 minutes behind Tehran. Conversion formula: PST = Tehran − 11h30 · PDT = Tehran − 10h30.