The Atomic Clock and the Network Time Server

The atomic clock will be the culmination of mankind’s obsession of telling correct time. Before the atomic clock and also the nanosecond accuracy they, utilize time scales were based on the celestial bodies.
However, thank you for the development with the atomic clock it’s got now been realised that even the Earth in its rotation is not as accurate a measure of time because the atomic clock because it loses or gains a fraction of a second every single day.
Because of the want to possess a timescale primarily based fairly to the Earth’s rotation (astronomy and farming becoming two reasons) a timescale which is held by atomic clocks but adjusted for almost any slowing (or acceleration) in the Earth’s spin. This timescale is identified as UTC (Coordinated Universal Time) as employed across the globe making sure commerce and trade utilise the same time.
Computer networks use network time servers to synchronise to UTC time. Many folks refer to these time server gadgets as atomic clocks but which is inaccurate. Atomic clocks are extremely expensive and highly sensitive items of gear and are only normally to become found in universities or nationwide physics laboratories.
Fortunately nationwide physics laboratories like NIST (National Institute for Standards and Time – USA) and NPL (National Physical Laboratory – UK) broadcast the time signal from their atomic clocks. Alternatively the GPS network is another decent supply of correct time as each GPS satellite has onboard its very own atomic clock.
The network time server gets time from an atomic clock and distributes it utilizing a protocol for instance NTP (Network Time Protocol) making sure the computer network is synchronised for the identical time.
Because network time servers are managed by atomic clocks they are able to maintain incredibly accurate time; not losing a 2nd in hundreds if not thousands of years. This ensures the computer network is both safe and unsusceptible to timing problems as all devices may have the exact exact same time.

Find out more about network time.

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