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Coordinated UNiversal Time - explained!

Atomic clocks use an atomic resonance frequency standard as their timekeeping element and are by far the most accurate chronometers possible with the latest Strontium based atomic clocks boasting a precision of a less than a second lost in several hundred million years.

The clocks maintain a continuous and stable time scale called International Atomic Time (TAI). However, for civil time, another time scale, Coordinated Universal Time (UTC)which  is derived from TAI, but synchronized using leap seconds to UTC, to keep it based on the rotation of the Earth.

This article explores the best methods of receiving UTC time.

A NTP Server connects to a computer network with the purpose of synchronising all computers, routers and other devices to the exact same time. NTP servers use Network Time Protocol to adjust the drift of different machines to match the reference time.

NTP servers rely on using a reference clock; most networks that use a NTP server will use a UTC (Coordinated Universal Time) time source. UTC is based on the time told by the incredibly accurate and expensive atomic clocks. 

This article discusses the development of atomic clocks, why accuracy is so important, how they developed and the next generation of atomic clocks that offer increased accuracy.

This article discusses the importance of synchronisation and accuracy in computer networks.

This article explores the concept of time, how it is measured and how our technologies have required more and more accurate ways of measuring time.

This article explains how to configure Windows XP to run as a NTP network time server.

This article explains the world’s global timescale - UTC (Coordinated Universal Time)  what it is, why it was adopted and how important it is now.

What time is it? One of the commonest questions uttered
around the World but what exactly are we asking? You ask someone in China what
the time is then you will certainly get a different answer if you ask an
American, obviously their time-zones are on the opposite side of the world. 

But what if you ask two people in the same room as you? You
may get the same answer from them both but then again one person’s watch may be
a minute or two faster.