Japan Standard Time (jst) is used in Japan. The IANA timezone identifier is Asia/Tokyo.

Central European Summer Time (cest) is used in France. The IANA timezone identifier is Europe/Paris.

JST to CEST Time Converter

Japan Standard Time → Central European Summer Time

JST = UTC+9CEST = UTC+2

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

CEST (Paris)

France · -7h

02:00

London

United Kingdom · -8h

01:00

New York

USA · -13h

20:00-1 day

Dubai

United Arab Emirates · -5h

04:00

Sydney

Australia · +1h

10:00

JST (Tokyo) vs CEST (Paris) — time difference

JST (Tokyo) is 7 hours ahead of CEST (Paris). Midday in JST (Tokyo) lines up with 05:00 in CEST (Paris).

JST (Tokyo) observes Asia/Tokyo and CEST (Paris) observes Europe/Paris — a 7 hours gap between them.

Shared working hours

There is a 1-hour window each day where both JST (Tokyo) and CEST (Paris) are within standard business hours (09:00–17:00).

00:0006:0012:0018:0024:00

JST (Tokyo)

CEST (Paris)

Overlap (1h)

Optimal meeting slots

JST (Tokyo) and CEST (Paris) share 1 hour of business hours overlap daily.

16:00 Tokyo / 09:00 Paris✓ Both working

Assumes a standard 9 AM–5 PM workday in each location's local timezone.

Upcoming public holidays

⚡ Watch out — upcoming holidays on both sides. Verify availability in advance.

JST (Tokyo)7 holidays

Jul 20Marine Day

Aug 11Mountain Day

Sep 21Respect for the Aged Day

Sep 23Autumnal Equinox Day

Oct 12Sports Day

CEST (Paris)5 holidays

Jul 14Bastille Day

Aug 15Assumption Day

Nov 1All Saints' Day

Nov 11Armistice Day

Dec 25Christmas Day

How to work with JST (Tokyo) and CEST (Paris) time zones

Coordinating between JST (Tokyo) (Japan) and CEST (Paris) (France) means working around a 7-hour time difference. The 1-hour overlap window gives both teams a natural slot for real-time collaboration without anyone working outside normal hours.

💡 How to schedule across these time zones

✅

Schedule at 16:00–17:00 (JST (Tokyo)) for a 09:00–10:00 slot in CEST (Paris) — the sweet spot where both teams are working.

Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.

Install ClockinSync Free →

Drag the slider at the top to convert any JST (Tokyo) time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.

JST (Tokyo) ↔ CEST (Paris)

1h of business hours overlap daily (09:00–17:00)

JST (Tokyo)

CEST (Paris)