The short answer

12am in Hawaii Time is 12pm in Rome.

Hawaii Time is 12 hours behind Rome. It falls outside the 9-to-5 in Hawaii Time but lands inside working hours in Rome.

Hawaii Time
12am
Rome
12pm
Right now
1:12amHST · UTC-10:00 · Mon, Jun 22
1:12pmCEST · UTC+02:00 · Mon, Jun 22
Read across to convert
Hawaii Time
HST · UTC-10:00
1:12am ☾
Rome
CEST · UTC+02:00
1:12pm ☀
Pinned12amHawaii Time=12pmRome
PINNED
12amMon
12pm
WORK
NOW
1am
1pm
WORK
2am
2pm
WORK
3am
3pm
WORK
4am
4pm
WORK
5am
5pm
6am
6pm
7am
7pm
8am
8pm
9am
WORK
9pm
10am
WORK
10pm
11am
WORK
11pm
12pm
WORK
12amTue ·+1d
1pm
WORK
1amTue ·+1d
2pm
WORK
2amTue ·+1d
3pm
WORK
3amTue ·+1d
4pm
WORK
4amTue ·+1d
5pm
5amTue ·+1d
6pm
6amTue ·+1d
7pm
7amTue ·+1d
8pm
8amTue ·+1d
9pm
9amTue ·+1d
WORK
10pm
10amTue ·+1d
WORK
11pm
11amTue ·+1d
WORK
daylightnightworking hoursoverlap
Best time to meet
No shared working hours.

Hawaii Time and Rome are too far apart for a working-day overlap. The least-unsociable option is an early-morning call on one side and an evening one on the other — or hand work off asynchronously and let the planet do the waiting.

Popular conversions

Quick reference.

9amHawaii Time=9pmRome
12pmHawaii Time=12amRome · next day
3pmHawaii Time=3amRome · next day
5pmHawaii Time=5amRome · next day
9pmHawaii Time=9amRome · next day
In context

What each side covers.

Hawaii Time
HST · UTC-10:00
1:12am

US

Rome
CEST · UTC+02:00
1:12pm
Cities on this clock

Frequently asked

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

What is the time difference between Hawaii Time and Rome?
Hawaii Time is 12 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 12am in Hawaii Time, what time is it in Rome?
12am in Hawaii Time is 12pm in Rome. It falls outside the 9-to-5 in Hawaii 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 Hawaii Time and Rome?
There's no comfortable 9-to-5 overlap between Hawaii 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 — HST 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.