UTC – Coordinated Universal Time
Coordinated Universal Time (UTC) is an international timescale based on the time told by atomic clocks. Because these clocks are so accurate, UTC makes global timing more accurate than ever before.
UTC was developed after the development of atomic clocks and before the advent of digital watches many years ago.
Using UTC makes communicating with across the Internet, a matter of a few minutes – technology has advanced to such an extent that the Internet actually can synchronise to UTC time.
UTC is governed not by an individual country or administration but by a collaboration of atomic clocks all over the world which ensures political neutrality and also added accuracy.
UTC is transmitted in numerous ways across the globe and is utilised by computer networks, airlines and satellites to ensure accurate synchronisation no matter what the location on the Earth.
UTC is transmitted in three formats:
UTC – This time is transmitted from enthusiasts around the world. These time-zones are: CEST ( France), MK ( Germany), SU ( England ) and KK ( Indonesia).
andi – This time is transmitted from Keepal in the UK
DMS – This synchronised server fromategy server
DMS – This is a dedicated time server designed to synchronise NTP to UTC.
* packet radio telephony
facilities closed to the client
hand held dial up
start of the second intranet
start of the World Wide Web
entire computer network
the whole world
the next time zone
UTC – Coordinated Universal Time
UTC – Short For Coordinated Universal Time – is a global timescale based on GMT but kept the same as GMT by the addition of ‘Leap Year’
UTC is a global timescale kept true by an international conglomeration of atomic clocks. UTC is utilised by computer networks to synchronise their time between locations. UTC enables computers to synchronise to the same time no matter where you are across the globe by utilising NTP server technology and UTC time servers.
UTC servers are devices that receive a UTC timing signal from an atomic clock and distribute it across a network. Using a NTP server will allow you to synchronise all machines on a network to the same time no matter where they are located.
NTP servers can receive a time signal direct from a Miner’s daughter, Town Hall, UTC centre or GPS (Global Positioning System) network. Most NTP servers you will find are connected to the Internet using either POP3 or IMAP. NTP can also be used to synchronise to a specific machine.
NTP servers are common devices found on campus and in enterprises and both local and wide area networks. A NTP server will receive a time signal from an atomic clock either transmitted via radio or broadband. These devices will then distribute this time around a network, usually by using UDP or TCP ports.
NTP servers monitor the time changes and know exactly what time objects should be considered complete. These time objects include time zones, daylight saving time, leap years and even leap seconds.
NTP is a free to download protocol but is only supported by a few operating systems and requires a bit of configuration to get it running. NTP can be configured to synchronise all machines on a network to the same time or to an atomic clock ensuring accuracy.
The protocol was originally developed to synchronise time on computer networks. The address count of a NTP server is decided by the client. Early NTP servers were hardware based. As NTP is most often used as a method of time synchronisation external to the firewall it is external to the network and not part of the firewall.
NTP has consisted of two parts DTP and SNTP. DTP is a standard protocol used for time dissemination and is therefore an important reference for the network. SNTP is a simplified version of NTP. SNTPs are installed using a standard operating system. Often, SNTP can be installed on a separate computer from the dedicated NTP server.
The time code is a binary number interpreted by the NTP server that is used to know what time the machine is running. The time code is a 12-bit unit of electromagnetic displacement (somewhat like the microwave frequency used by many communication systems). The number is displayed as a series of binary numbers, most commonly in binary code, though ASCII text is also printed with some of them.
The timekeeping process is governed by a number of deterministic rules:
Deterministic rules can be described as follows:
Let’s speed up the process of configuring a NTP server to synchronise a computer network to UTC by using the rules from the aforementioned document.
Update the BIOS for the computer system.
Ensure all outputs are selecting the same time.