What is the time difference between Los Angeles and Tehran?

Tehran is 10 hours 30 minutes ahead of Los Angeles. 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 Tehran from Los Angeles?

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 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.

Does Tehran observe daylight saving time?

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

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

It is 22:30 in Tehran, 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 Los Angeles and Tehran use?

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

Convert Los Angeles time to Tehran time

Tehran is 10 hours 30 minutes ahead of Los Angeles right now, so midday in Los Angeles lands in the late night in Tehran.

Convert a time

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Date

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Converted time

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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 Los Angeles, across for Tehran.

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

Daylight saving time

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

Los Angeles

Observes daylight saving time

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

Tehran

Does not observe daylight saving time

Standard: UTC+3:30

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.

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

Reference

The zone identifiers and offsets behind everything above.

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

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

Common questions

What is the time difference between Los Angeles and Tehran?: Tehran is 10 hours 30 minutes ahead of Los Angeles. 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 Tehran from Los Angeles?: 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 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.
Does Tehran observe daylight saving time?: No. Tehran stays on UTC+3:30 all year, so its clocks never move.
If it is midday in Los Angeles, what time is it in Tehran?: It is 22:30 in Tehran, 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 Los Angeles and Tehran use?: Los Angeles uses America/Los_Angeles, currently UTC-7 (PDT), and Tehran uses Asia/Tehran, currently UTC+3:30. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.