Clockjumper

Timezone conversion

JST to Rome Time — Convert Japan Standard Time to Rome

Rome is currently 7 hours behind JST. The gap shifts across the year: around January Rome is 8 hours behind JST, and around July it is 7 hours behind JST, because one or both zones observe daylight saving.

Rome is currently 7 hours behind JST.

JST • JST (UTC+9)
11:32 PM
Thursday, Sep 10
Rome • CEST (UTC+2)
4:32 PM
Thursday, Sep 10

Interactive converter

From

12:00PM

To

Select both cities to see the converted time.

Pick a time to convert
:

Full JST to Rome conversion table

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

Daylight saving and how the gap changes

Around January Rome is 8 hours behind JST. Around July it is 7 hours behind JST. That swing comes from one or both zones observing daylight saving on different schedules — the converter above always reflects the correct offset for the date you pick.

Frequently asked questions

Is Rome ahead of or behind JST right now?
Rome is currently 7 hours behind JST.
What is the current JST to Rome time difference?
Right now the gap is 7 hours — Rome is 7 hours behind JST.
Does the JST → Rome offset change during the year?
Yes. Around January Rome is 8 hours behind JST; around July it is 7 hours behind JST. The converter above always reflects the correct offset for the date you pick.
Does JST observe daylight saving time?
No — Japan Standard Time stays at a fixed UTC offset year-round.
Does Rome observe daylight saving time?
Yes — Rome observes DST, so its UTC offset shifts by 1 hour between winter and summer.
What time is 3 AM JST in Rome?
3:00 AM JST is 8:00 PM (previous day) Rome.
What time is 8 AM JST in Rome?
8:00 AM JST is 1:00 AM Rome.
What time is 9 AM JST in Rome?
9:00 AM JST is 2:00 AM Rome.
What time is 10 AM JST in Rome?
10:00 AM JST is 3:00 AM Rome.
What time is 11 AM JST in Rome?
11:00 AM JST is 4:00 AM Rome.
What time is 12 PM (noon) JST in Rome?
12:00 PM JST is 5:00 AM Rome.
What time is 2 PM JST in Rome?
2:00 PM JST is 7:00 AM Rome.
What time is 3 PM JST in Rome?
3:00 PM JST is 8:00 AM Rome.
What time is 4 PM JST in Rome?
4:00 PM JST is 9:00 AM Rome.
What time is 5 PM JST in Rome?
5:00 PM JST is 10:00 AM Rome.
What time is 9 PM JST in Rome?
9:00 PM JST is 2:00 PM Rome.
What time is 10 PM JST in Rome?
10:00 PM JST is 3:00 PM Rome.
When is the best time to schedule a call between JST and Rome?
The working-hours overlap (09:00–17:00 in both zones) runs roughly 4:00 PM – 5:00 PM JST (≈ 1 hour). The midpoint of that window — 4:30 PM JST, 9:30 AM Rome — is the safest single slot to propose for a live call.
What time zone does JST refer to?
JST refers to Japan Standard Time (IANA: Asia/Tokyo).
What time zone does Rome refer to?
Rome uses the Europe/Rome time zone.

Related conversions

Learn more