Convert CET to JST
Compare Central European Time and Japan Standard Time with a live converter, hour-by-hour table, and tools to schedule meetings.
How CET to JST Works
Convert Central European Time (UTC+1) to Japan Standard Time (UTC+9) with the current 8-hour difference shown automatically. The converter also reflects seasonal DST changes when CET switches to CEST.
Hour-by-Hour Time Table
Use the visual grid and hour-by-hour table to compare CET and JST across the day. Check overlapping business hours, then export times with ICS download or add them to Google Calendar and Gmail.
Schedule Meetings Accurately
Find the best meeting times between Central Europe and Japan with automatic DST adjustment and historical timezone support. Time calculations are based on the IANA timezone database for accuracy.
How to Convert CET to JST
Open the converter page: Go to https://www.xconvert.com/time-converter/cet-to-jst-converter to load a visual comparison grid with CET and JST already lined up. This page is useful when you are scheduling a supplier call between Germany and Japan, confirming a handoff between a Paris team and a Tokyo engineering office, or checking whether a late-afternoon meeting in Europe lands too late in Japan.
Add comparison cities if your schedule involves specific offices: Click + Add City and search for cities such as Berlin, Paris, or Tokyo to compare regional business hours alongside CET and JST. This helps teams in automotive, electronics, luxury goods, logistics, and gaming industries see whether a Europe-based workday overlaps with office hours in Japan before sending invites.
Select the meeting window on the grid: Click Select, then drag across the CET row to highlight a time range in purple, such as 9:00 CET to 12:00 CET, which corresponds to 17:00 JST to 20:00 JST. You can also drag 15:00 CET to 18:00 CET to see that it becomes 23:00 JST to 2:00 JST (next day), which is usually too late for standard business calls and is better suited to urgent operations or launch monitoring.
Export and share the result: After selecting a range, use the export options for ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link. This is especially practical when a European sales team needs to send a confirmed meeting slot to Tokyo colleagues so everyone receives the event in local time without manually converting CET to JST.
Understanding the CET to JST Time Difference
CET, Central European Time, is UTC+1, while JST, Japan Standard Time, is UTC+9. That makes JST 8 hours ahead of CET, so a morning time in Central Europe becomes late afternoon or evening in Japan. For example, 9:00 CET = 17:00 JST, 12:00 CET = 20:00 JST, 15:00 CET = 23:00 JST, and 18:00 CET = 2:00 JST (next day).
This difference matters for companies working across Europe and Japan in sectors such as manufacturing, finance, shipping, semiconductors, gaming, and enterprise software. A normal start-of-day check-in in CET often reaches Japan near the end of the local business day, while late European afternoon meetings usually push into late-night JST and can require next-day follow-up.
CET is a standard-time abbreviation, and its daylight saving counterpart is CEST. Japan uses JST year-round and does not observe DST, so the CET-to-JST difference changes during the months when Central European locations switch from CET to CEST. In practical terms, the difference shown on this page applies when Europe is on CET, while during the DST period the gap changes because Japan stays on the same clock.
CET is used across a wide part of Europe and nearby regions, including Albania, Algeria, Andorra, Austria, Belgium, Bosnia and Herzegovina, Croatia, Czechia, Denmark, France, Germany, Gibraltar, Hungary, Italy, Liechtenstein, Luxembourg, Malta, Monaco, Montenegro, Netherlands, North Macedonia, Norway, Poland, San Marino, Serbia, Slovakia, Slovenia, Spain, Svalbard and Jan Mayen, Sweden, Switzerland, Tunisia, and Vatican. JST is used in Japan, so this converter is relevant for coordination between Japanese offices and major European business centers such as Frankfurt, Paris, Milan, Amsterdam, Brussels, Zurich, Vienna, and Madrid.
Best Times for Calls and Meetings Between CET and JST
Because JST is 8 hours ahead of CET, the most practical overlap usually comes from the morning to midday in CET, which becomes the late afternoon to evening in JST. The clearest examples are 9:00 CET = 17:00 JST and 12:00 CET = 20:00 JST, giving a workable same-day window for status calls, partner updates, and customer meetings that need both sides online during waking business hours.
For many teams, 9:00 CET to 12:00 CET is the most realistic meeting block. That translates to 17:00 JST to 20:00 JST, which can still work for Tokyo-based staff finishing the day, especially in international divisions handling Europe-facing accounts, global procurement, or cross-border project management.
A 15:00 CET meeting becomes 23:00 JST, which is already outside normal office hours in Japan. By 18:00 CET, it is 2:00 JST the next day, so that timing is generally unsuitable for routine meetings and should be reserved only for critical incidents, overnight operations, or time-sensitive production issues.
If you are planning recurring calls, the safest approach is to anchor them earlier in the CET day. That protects Japanese participants from repeated late-night meetings and is especially important for long-running collaborations between European headquarters and Tokyo teams in automotive supply chains, electronics sourcing, game publishing, and regional market operations.
Frequently Asked Questions
What is the time difference between CET and JST?
JST is 8 hours ahead of CET. That means when the workday starts in Central Europe, it is already late afternoon in Japan, which is why Europe-to-Japan meetings are usually easier earlier in the CET day.
A few quick reference points make the gap easy to remember: 9:00 CET = 17:00 JST and 12:00 CET = 20:00 JST. Once CET moves into the late afternoon, Japan is already at night or into the next day.
When is 9 AM CET in JST?
9:00 CET = 17:00 JST. This is one of the most useful conversion points for business scheduling because it places a European morning meeting into a late-afternoon slot in Japan.
That timing often works well for same-day coordination between European offices and Tokyo teams. It is especially practical for commercial updates, project check-ins, and partner calls that need both sides available without requiring overnight attendance.
When is 12 PM CET in JST?
12:00 CET = 20:00 JST. A noon meeting in Central Europe lands in the evening in Japan, so it can still be possible for some teams but is less comfortable than a 9:00 CET start.
This is often the upper edge of a workable window for standard office meetings. If the Japanese side includes senior stakeholders, external clients, or teams with strict office-hour policies, an earlier CET slot is usually easier to attend.
When is 3 PM CET in JST?
15:00 CET = 23:00 JST. That places the meeting very late at night in Japan, which is generally unsuitable for regular collaboration.
This kind of timing may still be used for urgent production support, release supervision, logistics disruptions, or executive escalations where same-day action matters more than convenience. For routine weekly meetings, it is better to avoid this slot.
When is 6 PM CET in JST?
18:00 CET = 2:00 JST (next day). This means an early evening meeting in Central Europe becomes an overnight meeting in Japan on the following calendar day.
That next-day rollover is important for travel planning, calendar invites, and deadline coordination. If a European team sends an update at 18:00 CET expecting a live response, the Japanese side would receive it at 2:00 JST, when most offices are closed.
Does the difference between CET and JST change during DST?
Yes. CET is a standard-time abbreviation, and its daylight saving counterpart is CEST, while JST does not observe DST.
That means the 8-hour difference applies when Europe is on CET. During the months when Central European countries switch to CEST, the gap changes because Japan keeps the same time all year, so recurring meetings should be reviewed when Europe changes clocks.
What is the best meeting time between CET and JST?
The best meeting window is usually 9:00 CET to 12:00 CET, which corresponds to 17:00 JST to 20:00 JST. This range gives Europe a morning or midday slot while keeping Japan within the late afternoon or evening rather than pushing calls into the night.
In practice, 9:00 CET = 17:00 JST is one of the strongest options for recurring calls. It works well for sales coordination, supplier management, engineering handoffs, and regional planning between European offices and Japan-based teams.
Which countries use CET and which country uses JST?
CET is used in Albania, Algeria, Andorra, Austria, Belgium, Bosnia and Herzegovina, Croatia, Czechia, Denmark, France, Germany, Gibraltar, Hungary, Italy, Liechtenstein, Luxembourg, Malta, Monaco, Montenegro, Netherlands, North Macedonia, Norway, Poland, San Marino, Serbia, Slovakia, Slovenia, Spain, Svalbard and Jan Mayen, Sweden, Switzerland, Tunisia, and Vatican.
JST is used in Japan. This makes CET-to-JST conversion especially relevant for organizations connecting Japanese operations with European markets, suppliers, logistics partners, and headquarters across the CET region.