JST to CEST Converter & Meeting Planner
Quick answer: 9:00 AM JST = 2:00 AM CEST (fixed +09:00 standard offset — not DST-adjusted). Use the interactive converter below for DST-aware local-time scheduling.
Planning a call or meeting between Japan Standard Time (JST) and Central European Summer Time (CEST)? You need to account for the standard time difference. Central European Summer Time is normally 7 hours behind Japan Standard Time. Whether you are coordinating between teams in Tokyo and Osaka and Berlin and Paris, 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 JST = 5:00 PM CEST. The full 24-hour JST to CEST table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM JST = 8:00 AM CEST.
| JST Time | CEST Time |
|---|---|
| 12:00 AM (00:00) | 5:00 PM (17:00)-1 day |
| 1:00 AM (01:00) | 6:00 PM (18:00)-1 day |
| 2:00 AM (02:00) | 7:00 PM (19:00)-1 day |
| 3:00 AM (03:00) | 8:00 PM (20:00)-1 day |
| 4:00 AM (04:00) | 9:00 PM (21:00)-1 day |
| 5:00 AM (05:00) | 10:00 PM (22:00)-1 day |
| 6:00 AM (06:00) | 11:00 PM (23:00)-1 day |
| 7:00 AM (07:00) | 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) |
Best time to call Berlin from Tokyo
For most work calls, compare the normal business day in Tokyo (JST) with the business day in Berlin (CEST). JST commonly covers East Asia, while CEST is mainly associated with Western Europe, Central Europe.
⚠️ 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 4:00 PM - 6:00 PM JST, which corresponds to 9:00 AM - 11:00 AM CEST. This window sits inside the typical JST workday (9:00 AM - 6:00 PM) and the CEST workday (9:00 AM - 6:00 PM).
- DST Safety: JST or CEST may shift during Daylight Saving Time. Always confirm the converted time for your specific date.
- Tokyo Stock Exchange (TSE): 09:00-15:00 local time in Tokyo.
- Frankfurt Stock Exchange (Xetra): 09:00-17:30 local time in Frankfurt.
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Frequently Asked Questions
What is the time difference between JST and CEST?
During standard time, Central European Summer Time is 7 hours behind Japan Standard Time.
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.
When does CEST start and end?
CEST begins on the last Sunday in March at 02:00 local CET time, when clocks spring forward one hour from CET (UTC+1) to CEST (UTC+2). It ends on the last Sunday in October at 03:00 local CEST time, when clocks fall back to CET. In 2026, CEST runs from March 29 through October 25, covering approximately seven months of the year across all EU member states that observe this schedule.
Is CEST the same as CET?
CEST and CET are two phases of the same Central European Time zone. CET (Central European Time) is the winter offset at UTC+1, observed from late October through late March. CEST (Central European Summer Time) is the summer offset at UTC+2, active during the EU Daylight Saving Time period — meaning Berlin, Paris, and Rome run one hour ahead of their winter clock for roughly seven months each year.