What we do

• What's New
• Japan Standard Time
• Transmission Information
• What we do
  • Mission
  • Reserch on applied technology
  • Pamphlet
  • Weights of Atomic Clocks
• JJY
• Time Dissemination Service
• FAQs and Data

What we do

• Mission of Japan Standard Time Group
  • International Atomic Time (TAI), Coordinated Universal Time (UTC), and Leap Seconds
  • Generation of Japan Standard Time (JST)
  • Comparison of JST
  • Dissemination of JST
  • New Initiatives for an IT Society
• Supply of time information and reserch on applied technology by using NetWork.
• Pamphlet
  • Pamphlet of Japan Standard Group(PDF)
  • Pamphlet of Low Frequency Standard Time and Frequency Transmission Facilities(PDF)
• Weights of Atomic Clocks(NICT)
  • Top 10 List(PDF)   (The Former Top 10 List)
  • Change Chart of NICT weight

Cesium Atomic Clock

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