The time offset between the NTP servers reference time and the Italian national time scale UTC(IT) is continuously monitored and is kept below the level of one millisecond.
The synchronization precision depends on the informatics network topology and on the distance between the NTP servers and the PC/server to be synchronized. Normally a synchronization at the level of hundreds of microseconds for devices belonging to the NTP servers network can be achieved, while for remote networks some tens of millisecond could be achieved.
The INRIM NTP servers can be reached by means of the following addresses:
Address
IPv4 address
IPv6 address
Services
ntp1.inrim.it
193.204.114.232
2001:760:2602::232
NTP (RFC 5905)
ntp2.inrim.it
193.204.114.233
2001:760:2602::233
NTP (RFC 5905)
time.inrim.it
193.204.114.105
2001:760:2602::105
NTP (RFC 5905), TIME (RFC 868),
DAYTIME (RFC 867