What is the time difference between Tehran and Los Angeles?

Los Angeles is 10 hours 30 minutes behind Tehran. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.

When is the best time to call Los Angeles from Tehran?

There is no time inside normal working hours in both cities, so someone has to take the call outside them. The nearest workable windows are listed above — pick one and alternate who gets the awkward slot.

Does Tehran observe daylight saving time?

No. Tehran stays on UTC+3:30 all year, so its clocks never move.

Does Los Angeles observe daylight saving time?

Yes. Los Angeles runs on UTC-8 in winter and UTC-7 in summer. The next change is on 2026-11-01, when clocks go back by 60 minutes.

If it is midday in Tehran, what time is it in Los Angeles?

It is 01:30 in Los Angeles, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.

Which time zones do Tehran and Los Angeles use?

Tehran uses Asia/Tehran, currently UTC+3:30, and Los Angeles uses America/Los_Angeles, currently UTC-7 (PDT). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Tehran time to Los Angeles time

Right now Los Angeles runs 10 hours 30 minutes behind Tehran. That gap is not fixed: it moves when either city changes its clocks.

Convert a time

From

Date

Time

Converted time

—

The converter needs JavaScript to run. Everything below — offsets, daylight saving dates and the hour-by-hour table — is part of the page and works without it.

Hour by hour

The whole day mapped across: read down the left for Tehran, across for Los Angeles.

Tehran	Los Angeles
00:00	13:30previous day
01:00	14:30previous day
02:00	15:30previous day
03:00	16:30previous day
04:00	17:30previous day
05:00	18:30previous day
06:00	19:30previous day
07:00	20:30previous day
08:00	21:30previous day
09:00	22:30previous day
10:00	23:30previous day
11:00	00:30
12:00	01:30
13:00	02:30
14:00	03:30
15:00	04:30
16:00	05:30
17:00	06:30
18:00	07:30
19:00	08:30
20:00	09:30
21:00	10:30
22:00	11:30
23:00	12:30

Daylight saving time

Tehran keeps one offset all year while Los Angeles moves twice. That is the whole reason this difference is seasonal.

Tehran

Does not observe daylight saving time

Standard: UTC+3:30

Los Angeles

Observes daylight saving time

Standard: UTC-8
Daylight: UTC-7
Next change: 2026-11-01 −60m

When you can actually talk

There is no hour where both cities are inside a 09:00–18:00 working day. Someone has to move — the nearest workable windows are below.

Tehran 03:30–04:30Los Angeles 17:00–18:00
Tehran 09:00–18:00Los Angeles 22:30–07:30

Reference

The zone identifiers and offsets behind everything above.

	Tehran	Los Angeles
IANA zone	Asia/Tehran	America/Los_Angeles
Abbreviation	UTC+3:30	PDT
Standard offset	UTC+3:30	UTC-8
Daylight offset	—	UTC-7
Clock changes this year	0	2
Country	Iran	United States

Example, not the current time. Live times appear once the page loads.

Common questions

What is the time difference between Tehran and Los Angeles?: Los Angeles is 10 hours 30 minutes behind Tehran. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.
When is the best time to call Los Angeles from Tehran?: There is no time inside normal working hours in both cities, so someone has to take the call outside them. The nearest workable windows are listed above — pick one and alternate who gets the awkward slot.
Does Tehran observe daylight saving time?: No. Tehran stays on UTC+3:30 all year, so its clocks never move.
Does Los Angeles observe daylight saving time?: Yes. Los Angeles runs on UTC-8 in winter and UTC-7 in summer. The next change is on 2026-11-01, when clocks go back by 60 minutes.
If it is midday in Tehran, what time is it in Los Angeles?: It is 01:30 in Los Angeles, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.
Which time zones do Tehran and Los Angeles use?: Tehran uses Asia/Tehran, currently UTC+3:30, and Los Angeles uses America/Los_Angeles, currently UTC-7 (PDT). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.