See also:

• Computers: Internet: Protocols: NTP  (22)
• Computers: Software: Internet: Clients: Time  (12)
• Reference: Time  (77)

• Beagle Software - NTP, Daytime timeserver and client software and hardware.
• Brandywine Communications - Offers advanced off-the-shelf and custom hardware time and frequency solutions including Network Time Protocol servers.
• Configuring Microsoft's Win32Time service. - Useful information on how to configure the win32time service which ships with Microsoft's server products.
• ELPROMA NTP Servers - European manufacturer of NTP Time Servers.
• EndRun Technologies - Provider of time and frequency equipment including NTP Servers.
• Galleon Systems - Provider of NTP time synchronisation solutions using the MSF radio signal and GPS satellites.
• Meinberg USA - Manufacturer of hardware Network Time Servers (NTP) for IPv4 and IPv6 networks.
• Network Time Protocol (NTP) Project. - The official page for the NTP Project. Contains information about the project, reference implementations of the protocol and software links. Also links to the pool of public NTP servers.
• NIST Web Clock - Shows the official US time in each time zone.
• NPL Computer Time Services - Truetime/NPL Phoneclock - Synchronization to UK time by telephone. This is the UK's national measurement laboratory.
• NTP with TymServer - Hardware NTP time server manufacturer.
• Open NTPD - A mainly BSD implementation of the Network Time Protocol.
• PresenTense Time Server - Windows time server which synchronizes itself with any true time source, including GPS via rs-232 com ports and then acts as a time server for all network clients. Screen-shots, features list, documentation, and free 30-day demo version.
• Spectracom: GPS hardware NTP and SNTP clocks. - Manufacturer of hardware GPS clocks and NTP/SNTP servers. Legally traceable time.
• Symmetricom, Inc. - Manufacturer of time and frequency synchronization equipment, including NTP Servers.
• Timeserver description on Wikipedia - Some useful information about the basics of what a time server is.
• TimeTools - Specializes in computer and network timing solutions. Using NTP for network time synchronisation in conjunction with MSF, DCF-77 and GPS time sources.