Time zone converter
CET to JST
Convert Central European Time — Rome to Japan Time — Tokyo — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in Rome, it's 4:00 PM in Tokyo. Tokyo is 7 hours ahead of Rome. Use the converter above to turn any CET time into JST, or scan the hour-by-hour table below for the full day.
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Central European Time — Rome ·
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Japan Time — Tokyo ·
Convert a specific timein Rome → — in Tokyo
CET to JST at a glance
9:00 AM CET
4:00 PM
JST · Tokyo
12:00 PM CET
7:00 PM
JST · Tokyo
5:00 PM CET
12:00 AMnext day
JST · Tokyo
Planning a meeting between Rome and Tokyo
Planning a call between Rome and Tokyo? The best overlap during a standard 9-to-5 workday runs 9:00 AM–10:00 AM CET (4:00 PM–5:00 PM JST). Aim for that window to reach both sides during business hours.
Hour-by-hour: Rome to Tokyo
A full day mapped from CET to JST.
Frequently asked
Is Tokyo ahead of or behind Rome?
Tokyo is 7 hours ahead of Rome.
What is 12:00 PM CET in JST?
12:00 PM in Rome is 7:00 PM in Tokyo.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so CET and JST automatically reflect the correct daylight-saving offset for the current date.