- The 2015 leap second briefing session was held.(Japanese version only) Documents distributed to the press.(Japanese version only)
- Our Web pages for the 26th leap second were uploaded to Our Response, Q&A and Information pages.(Japanese version only)
- A press release about implementation of leap second was issued.
(Japanese version only)
- Transmission of LF standard time and frequency signals will be temporarily suspended for renewal and maintenance of the facilities.(Japanese version only)
Welcome to Japan Standard Time (JST) Group. JST Group plays an important role in the Generation, Comparison, and Dissemination of Japan Standard Time and Frequency standard. Please choose the contents you'd like to use.
|What we do|
|The Information of Standard-time and Frequency-signal Emission (JJY) (The users of radio wave clock see here for more information, please)|
|Time Dissemination Service (NTP,TEL-JJY,Time Business,calibration)|
|FAQs and Data|
Please contact us if you have any questions, comments, corrections, or suggestions.