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Time has long been a major subject of philosophy, art, poetry, and science. There are widely divergent views about its meaning; hence it is difficult to provide an uncontroversial definition of time. Scholars disagree on whether time itself can be measured or is itself part of the measuring system. Many fields use an operational definition in which the only definition attempted is that of the units used.

The measurement of time has also occupied scientists and technologists, and was a prime motivation in astronomy. Time is also a matter of significant social importance, having economic value ("time is money") as well as personal value, due to an awareness of the limited time in each day and in our lives. Units of time have been agreed upon to quantify the duration of events and the intervals between them. Regularly recurring events and objects with apparent periodic motion have long served as standards for units of time. Examples are the apparent motion of the sun across the sky, the phases of the moon, and the swing of a pendulum.

Time has historically been closely related with space, most obviously with spacetime in Einstein's General Relativity.

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Beagle Software - NTP, Daytime timeserver and client software and hardware.
Meta Description: [ Beagle Software is a specialist in time syncrhonization solutions. ]

Brandywine Communications - Offers advanced off-the-shelf and custom hardware time and frequency solutions including Network Time Protocol servers.
Meta Description: [ Brandywine Communications: Ultra-Precision Time and Frequency. Time code Synchronization, NTP Synchronization, Network Time Server, IRIG sync, GPS sync, Rb Oscillator, SA-ASM, STANAG, PTTI ]

ELPROMA NTP Servers - European manufacturer of NTP Time Servers.
Meta Description: [ TimeServers NTP synchronize network time. Elproma is manufacturing TimeServers NTP, Radio Clocks and Atomic Clocks. UTC time source is synchronized to GPS, DCF77 or rubidium oscillators ]

EndRun Technologies - Offers timing equipment designed to work in conjunction with NTP.

Galleon Systems - Provider of NTP time synchronisation solutions using the MSF radio signal and GPS satellites.
Meta Description: [ Galleon Time synchronization using, GPS Clocks and Atomic Radio Time Synchronisation Clocks (MSF, DCF & WWVB) For Computers, Servers, Networks PC's, CCTV systems and wall clocks, to maintain accurate time. Supplied by Galleon, Galleon Time Synchronisation using Atomic Radio Time Synchronisation C... ]

Meinberg LANTIME - A family of hardware Network Time Servers (NTP) for IPv4 and IPv6 networks.
Meta Description: [ NTP Time Servers,IRIG, GPS and DCF77 network time servers from Meinberg: An overview of the LANTIME family of NTP time servers ]

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.
Meta Description: [ The Network Time Protocol (NTP) is used to synchronize the time of a computer client or server to another server or reference time source, such as a radio or satellite receiver or modem. ]

NIST Web Clock - Shows the official US time in each time zone.
Meta Description: [ The official U.S. time. Public service cooperatively provided by the two time agencies of United States: a civilian agency, the National Institute of Standards and Technology (NIST), and its military counterpart, the U. S. Naval Observatory (USNO). Also historical and general interest exhibits. ]

NPL Computer Time Services - Truetime/NPL Phoneclock - Synchronization to UK time by telephone.
Meta Description: [ NPL. The National Physical Laboratory - the UK's national standards laboratory, who look after the basic units of measurement such as time, mass and length which ensure consistency and traceability of measurements. ]

NTP with TymServer - Hardware NTP time server manufacturer.
Meta Description: [ Internet time servers from TymServe, time server solutions providing synchronization for your network devices behind the firewall. ]

PresenTense NTP Auditor - PresenTense NTP Auditor monitors your computer's built-in clock and compares it's time to the real time. Most computer clocks lose or gain time so within a few days, your computer does not show the real time. PresenTense Auditor keeps your time client honest!
Meta Description: [ NTP4.0 Time Client - Keeping Your Network Time Accurate ]

PresenTense Time Server - Multi protocol time server which synchronizes itself with any true time source and then acts as a time server for all network clients. Easy to set up but has powerful configuration settings for networks which require a high degree of accuracy. This means you can use PresenTense Server to synchronize your PC to a primary time source such as an atomic clock on the internet and offer time services to clients on your local area network. PresenTense server also allows synchronization to GPS receivers via RS-232 and the NMEA 0183 protocol. PresenTense Time Server ships with drivers for many reference clocks including Spectracom and Hopf.
Meta Description: [ NTP4.0 Windows Time Server - PresenTense Time Server ]

Spectracom: GPS hardware NTP and SNTP clocks. - Manufacturer of hardware GPS clocks and NTP/SNTP servers. Legally traceable time.
Meta Description: [ NTP (network time protocol) time server and time synchronization solutions using GPS from Spectracom, synchronize critical operations. Spectracom supports NTP / SNTP, SysLog, RADIUS, IPv6, LDAP and more. ]

Symmetricom, Inc. - Offers a variety of timing equipment including dedicated NTP servers.
Meta Description: [ Symmetricom is the only supplier of comprehensive network time synchronization solutions that include the dedicated network time servers and the necessary synchronization, management and monitoring software that synchronizes the time on IT devices such as workstations, servers and routers. ]

TimeTools - Specializes in computer and network timing solutions. Using NTP for network time synchronisation in conjunction with MSF, DCF-77 and GPS time sources.
Meta Description: [ NTP Time Server and Computer Timing Solutions for PC's and Networks. TimeTools Time Servers Ensure Accurate Time Network Wide. ]

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