Welcome

Welcome to the time data repository of Standards for Time and Frequency at the National Measurement Institute!

You can find data here that can be used to establish traceability to UTC(AUS), the legal standard for time in Australia, and Australia's realization of the international time standard Coordinated Universal Time (UTC).

Data services

• GNSS time transfer CGGTTS and RINEX format time transfer files from our GNSS time-transfer receivers
• GNSS traceability measurements of selected GNSS signals against UTC(AUS)
• NTP server traceability daily measurements of the offsets of our NTP servers with respect to UTC(AUS)
• WebTimer traceability Coming soon
• Old ftp server archive

Information about the files in each directory and their formats can be found in README.txt files in each directory.

Other

• Capabilities CMC documents etc
• Publications selected publications from Time and Frequency

Maintenance notice

The regular maintenance window for this repository is on Mondays between the hours 0900 and 1300 AEST/AEDT. Service may be interrupted without notice during this time.

For more information about the services we provide, please visit our main website.

You can also contact us at time@measurement.gov.au

---