National Institute of Standards and Technology, Boulder Laboratories (NIST Boulder)
NIST Internet Time Service (ITS)
test_servicetime & frequency dissemination / measurementIndustry: Aerospace
- Category
- Capabilities & Access
- Affiliations
- NIST Boulder
Description
Public NTP service from NIST stratum-1 time servers linked to UTC(NIST) for synchronizing computer clocks, plus a UT1 NTP server, client software (nistime-32bit.exe) and guidance on leap-second handling.
Official page
https://www.nist.gov/pml/time-and-frequency-division/time-distribution/internet-time-service-its
Open official page (opens in a new tab)Access
- Access summary
- download
Contact
- General contact
- Internet Time Service <internet-time-service@nist.gov>; internet-time-service@nist.gov
Details
- Keywords
- network time protocol, computer clock synchronization, leap seconds, ut1 server, stratum-1 servers
- Location
- Boulder, Colorado
- Test standard
- UTC(NIST)
- Associated entity
- NIST
- Specifications
- The data packet includes a 64-bit timestamp containing the time in UTC seconds since January 1, 1900 with a resolution of 200 ps. | The result will generally be the correct time within ±0.1 s.