The short answer

1am in Pacific Time is 10am in Rome.

Pacific Time is 9 hours behind Rome. It falls outside the 9-to-5 in Pacific Time but lands inside working hours in Rome.

Pacific Time
1am
Rome
10am
Right now
12:48amPDT · UTC-07:00 · Mon, Jun 22
9:48amCEST · UTC+02:00 · Mon, Jun 22
Read across to convert
Pacific Time
PDT · UTC-07:00
12:48am ☾
Rome
CEST · UTC+02:00
9:48am ☀
Pinned1amPacific Time=10amRome
NOW
12amMon
9am
WORK
PINNED
1am
10am
WORK
2am
11am
WORK
3am
12pm
WORK
4am
1pm
WORK
5am
2pm
WORK
6am
3pm
WORK
7am
4pm
WORK
8am
5pm
9am
WORK
6pm
10am
WORK
7pm
11am
WORK
8pm
12pm
WORK
9pm
1pm
WORK
10pm
2pm
WORK
11pm
3pm
WORK
12amTue ·+1d
4pm
WORK
1amTue ·+1d
5pm
2amTue ·+1d
6pm
3amTue ·+1d
7pm
4amTue ·+1d
8pm
5amTue ·+1d
9pm
6amTue ·+1d
10pm
7amTue ·+1d
11pm
8amTue ·+1d
daylightnightworking hoursoverlap
Best time to meet
Closest workable window
Just outside the working window — early on one side, late on the other.
Pacific Time
7am–10am
=
Rome
4pm–7pm
Popular conversions

Quick reference.

9amPacific Time=6pmRome
12pmPacific Time=9pmRome
3pmPacific Time=12amRome · next day
5pmPacific Time=2amRome · next day
9pmPacific Time=6amRome · next day
In context

What each side covers.

Pacific Time
PDT · UTC-07:00
12:48am
Rome
CEST · UTC+02:00
9:48am
Cities on this clock

Frequently asked

Quick answers about converting between Pacific Time and Rome. Can't find what you need? Email [email protected].

What is the time difference between Pacific Time and Rome?
Pacific Time is 9 hours behind Rome right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.
When it's 1am in Pacific Time, what time is it in Rome?
1am in Pacific Time is 10am in Rome. It falls outside the 9-to-5 in Pacific Time but lands inside working hours in Rome. Use the hour-by-hour table above to read any other time across.
What's the best time for a call between Pacific Time and Rome?
There's no comfortable 9-to-5 overlap between Pacific Time and Rome — they sit on opposite sides of the planet's working day. Plan for an early or late call on one side, or hand work off asynchronously.
Does this account for daylight saving time?
Yes. We track every clock change in both places, so the abbreviations you see — PDT and CEST — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.
Why is the date sometimes different on each side?
When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.