What is the time difference between Rome and Los Angeles?

Los Angeles is 9 hours behind Rome. 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 Rome?

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 Rome observe daylight saving time?

Yes. Rome runs on UTC+1 in winter and UTC+2 in summer. The next change is on 2026-10-25, when clocks go back by 60 minutes.

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 Rome, what time is it in Los Angeles?

It is 03:00 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 Rome and Los Angeles use?

Rome uses Europe/Rome, currently UTC+2 (CEST), 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 Rome time to Los Angeles time

Right now Los Angeles runs 9 hours behind Rome. That gap is not fixed: it moves when either city changes its clocks.

Convert a time

From

Date

Time

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

Every hour of a day in Rome, and what the clock reads in Los Angeles at that same moment.

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

Daylight saving time

Rome and Los Angeles both observe daylight saving. Where their change dates differ, so does the gap between them for the weeks in between.

Rome

Observes daylight saving time

Standard: UTC+1
Daylight: UTC+2
Next change: 2026-10-25 −60m

Los Angeles

Observes daylight saving time

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

When you can actually talk

A standard working day in Rome and one in Los Angeles do not overlap at all. Any call between them is early for one side or late for the other.

Rome 02:00–03:00Los Angeles 17:00–18:00
Rome 09:00–02:00Los Angeles 00:00–17:00

Reference

The zone identifiers and offsets behind everything above.

	Rome	Los Angeles
IANA zone	Europe/Rome	America/Los_Angeles
Abbreviation	CEST	PDT
Standard offset	UTC+1	UTC-8
Daylight offset	UTC+2	UTC-7
Clock changes this year	2	2
Country	Italy	United States

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

Common questions

What is the time difference between Rome and Los Angeles?: Los Angeles is 9 hours behind Rome. 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 Rome?: 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 Rome observe daylight saving time?: Yes. Rome runs on UTC+1 in winter and UTC+2 in summer. The next change is on 2026-10-25, when clocks go back by 60 minutes.
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 Rome, what time is it in Los Angeles?: It is 03:00 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 Rome and Los Angeles use?: Rome uses Europe/Rome, currently UTC+2 (CEST), 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.