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Time difference between Rome and Los Angeles

Los Angeles is 9 hours behind Rome

Rome, Italy is UTC+1 · Los Angeles, the United States is UTC−8 — on standard time

The gap is not the same all year

Every converter gives one number for this pair. That number is right for most of the year and wrong for part of it, because Rome goes forward on the last Sunday in March and back on the last Sunday in October and Los Angeles goes forward on the second Sunday in March and back on the first Sunday in November.

Rome / Los Angeles clocksDifferenceHow long
summer / summer, standard / standard9 hours behindabout 48 weeks — most of the year
standard / summer8 hours behindabout 4 weeks

Both change their clocks and both are in the northern hemisphere, but not on the same weekend — Rome goes forward on the last Sunday in March and Los Angeles on the second Sunday in March. For the days in between, the gap is neither party's expected figure, and a standing meeting silently moves by an hour. That mismatch is a common cause of a missed international call.

When they can both be at their desks

Nine-to-five in Rome and nine-to-five in Los Angeles do not overlap at all. With 9 hours between them, one side is always outside working hours, and the practical question is which side takes the early start or the late finish rather than when to meet.

Rome to Los Angeles, hour by hour

RomeLos Angeles
12:00 AM3:00 PM (previous day)
1:00 AM4:00 PM (previous day)
2:00 AM5:00 PM (previous day)
3:00 AM6:00 PM (previous day)
4:00 AM7:00 PM (previous day)
5:00 AM8:00 PM (previous day)
6:00 AM9:00 PM (previous day)
7:00 AM10:00 PM (previous day)
8:00 AM11:00 PM (previous day)
9:00 AM12:00 AM
10:00 AM1:00 AM
11:00 AM2:00 AM
12:00 PM3:00 AM
1:00 PM4:00 AM
2:00 PM5:00 AM
3:00 PM6:00 AM
4:00 PM7:00 AM
5:00 PM8:00 AM
6:00 PM9:00 AM
7:00 PM10:00 AM
8:00 PM11:00 AM
9:00 PM12:00 PM
10:00 PM1:00 PM
11:00 PM2:00 PM

On the usual gap of 9 hours.

Frequently asked questions

What is the time difference between Rome and Los Angeles?

Los Angeles is 9 hours behind Rome for most of the year. It is not the same all year — there is one other gap, because Rome goes forward on the last Sunday in March and back on the last Sunday in October and Los Angeles goes forward on the second Sunday in March and back on the first Sunday in November.

Is Los Angeles ahead of Rome?

No — Los Angeles is 9 hours behind. Rome is UTC+1 and Los Angeles is UTC−8 on standard time.

What time is 9 AM in Rome in Los Angeles?

12:00 AM, on the usual gap.

When can Rome and Los Angeles meet?

Nine-to-five in Rome and nine-to-five in Los Angeles do not overlap at all. One side has to take the call outside working hours, and with 9 hours between them it is worth deciding in advance which side that is.

Other pairs

Every Rome pair · Every Los Angeles pair · All city pairs · Time zones by abbreviation