CET to JST Converter & Meeting Planner
Quick answer: 9:00 AM CET = 5:00 PM JST (fixed +01:00 standard offset — not DST-adjusted). Use the interactive converter below for DST-aware local-time scheduling.
Planning a call or meeting between Central European Time (CET) and Japan Standard Time (JST)? You need to account for the standard time difference. Japan Standard Time is normally 8 hours ahead of Central European Time. Whether you are coordinating between teams in Paris and Berlin and Tokyo and Osaka, our live tool has you covered. Use our interactive overlap studio below to find the perfect waking hours for both regions, taking into account any seasonal Daylight Saving Time (DST) changes.
24-Hour Conversion Table
Quick reference: 12:00 AM CET = 8:00 AM JST. The full 24-hour CET to JST table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM CET = 11:00 PM JST.
| CET Time | JST Time |
|---|---|
| 12:00 AM (00:00) | 8:00 AM (08:00) |
| 1:00 AM (01:00) | 9:00 AM (09:00) |
| 2:00 AM (02:00) | 10:00 AM (10:00) |
| 3:00 AM (03:00) | 11:00 AM (11:00) |
| 4:00 AM (04:00) | 12:00 PM (12:00) |
| 5:00 AM (05:00) | 1:00 PM (13:00) |
| 6:00 AM (06:00) | 2:00 PM (14:00) |
| 7:00 AM (07:00) | 3:00 PM (15:00) |
| 8:00 AM (08:00) | 4:00 PM (16:00) |
| 9:00 AM (09:00) | 5:00 PM (17:00) |
| 10:00 AM (10:00) | 6:00 PM (18:00) |
| 11:00 AM (11:00) | 7:00 PM (19:00) |
| 12:00 PM (12:00) | 8:00 PM (20:00) |
| 1:00 PM (13:00) | 9:00 PM (21:00) |
| 2:00 PM (14:00) | 10:00 PM (22:00) |
| 3:00 PM (15:00) | 11:00 PM (23:00) |
| 4:00 PM (16:00) | 12:00 AM (00:00)+1 day |
| 5:00 PM (17:00) | 1:00 AM (01:00)+1 day |
| 6:00 PM (18:00) | 2:00 AM (02:00)+1 day |
| 7:00 PM (19:00) | 3:00 AM (03:00)+1 day |
| 8:00 PM (20:00) | 4:00 AM (04:00)+1 day |
| 9:00 PM (21:00) | 5:00 AM (05:00)+1 day |
| 10:00 PM (22:00) | 6:00 AM (06:00)+1 day |
| 11:00 PM (23:00) | 7:00 AM (07:00)+1 day |
Best time to call Tokyo from Paris
For most work calls, compare the normal business day in Paris (CET) with the business day in Tokyo (JST). CET commonly covers Europe, North Africa, while JST is mainly associated with East Asia.
⚠️ Note: 2026-07-05 is not a normal workday in one or both regions based on their configured calendar. The overlap below should be treated as a reference, not a guaranteed office-hours window.
✅ The most practical overlap on 2026-07-05 is usually 9:00 AM - 11:00 AM CET, which corresponds to 4:00 PM - 6:00 PM JST. This window sits inside the typical CET workday (9:00 AM - 5:00 PM) and the JST workday (9:00 AM - 6:00 PM).
- DST Safety: CET or JST may shift during Daylight Saving Time. Always confirm the converted time for your specific date.
- Frankfurt Stock Exchange: 09:00-17:30 local time in Frankfurt.
- Tokyo Stock Exchange (TSE): 09:00-15:00 local time in Tokyo.
🔥 Popular CET & JST Converters
Frequently searched time zone conversions related to your search.
Related Time Converters
Explore nearby time zone offsets and reverse conversions related to CET and JST.
Frequently Asked Questions
What is the time difference between CET and JST?
During standard time, Japan Standard Time is 8 hours ahead of Central European Time.
What is the difference between CET and CEST?
CET (Central European Time) is the standard winter offset at UTC+1, observed from the last Sunday in October through the last Sunday in March. CEST (Central European Summer Time) is the daylight saving offset at UTC+2, applied each summer when European clocks advance one hour.
Does Spain use Central European Time?
Yes, mainland Spain observes CET (UTC+1) in winter and CEST (UTC+2) in summer, placing it on the same clock as Germany and France. This makes Spain one hour ahead of the United Kingdom despite sharing a much closer geographic longitude to Portugal, which uses GMT.
Does Japan observe Daylight Saving Time?
Japan has not observed Daylight Saving Time since 1951, when the practice introduced during the Allied occupation was abolished by the Japanese government. JST has remained fixed at UTC+9:00 ever since, and there is no current legislation to reintroduce DST in Japan.
Is JST the same as Korean Standard Time (KST)?
Yes, South Korea's Korean Standard Time (KST) operates at the same UTC+9:00 offset as JST, and South Korea also does not observe Daylight Saving Time. The two countries share an identical clock year-round, which simplifies scheduling for the significant trade, technology, and cultural exchange between Tokyo and Seoul.