The PTB operates three time servers for the time synchronization of computers
via the Internet. For disseminating time information, these servers
use the "Network Time Protocol"
(NTP). The design of this protocol aims at synchronizing computer clocks
within LANs and throughout the Internet. It is based on the Internet IP
protocol and is available for all relevant operating systems.
Synchronizing a computer by means of the PTB time servers requires adequate
software supporting this protocol. Such programs are available for the
Windows, UNIX, Macintosh and other operating systems. A list of suitable
programs can be found at
Synchronization Software" . After installing any such program it must
be given the addresses of servers to be used for time synchronization.
The PTB time servers may be referenced by the following addresses,
Please observe these important hints:
The capacity of the PTB Braunschweig computing centre providing, we aim
at making permanently accessible at least one out of three time servers.
However, we cannot guarantee a permanent, uninterrupted operation free
PTB cannot be held liable by the users for damages of any kind resulting
from breakdown of the PTB time service, faulty transmission by the PTB
time servers or deviations due to Internet delays.