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The Global Positioning System is most famously used throughout the world as a source of satellite navigation but it also has another use - that as a time reference for network synchronization. GPS time is the time generated by the atomic clocks onboard the satellites. The atomic clock's time signal is what is used by satellite navigation systems to work out location information but they can also be used as a reference for GPS NTP time servers.
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Strictly speaking GPS time is not the same as Universal Coordinated Time (UTC) the global timescale. This is because UTC has had additional seconds added at the end of each year (Leap Seconds) to counter the inaccuracies of the Earth's rotation. Since the GPS network was launched in the late 1970's there has been 17 leap seconds added to UTC (at the time of writing), this means GPS time is exactly 17 seconds behind UTC. However, the time protocol NTP (Network Time Protocol) recognises this difference in GPS time and adjusts accordingly to ensure that GPS time is converted to UTC.
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| Galleon GPS Time servers provide accurate time as well as network security, they receive the time from GPS satellites, without compromising your firewall and network security. Using a GPS time server and our unique easy-to-use Time Sync software, time synchronization can be achieved to within a few milliseconds of UTC. |
To view a full Products listings including more GPS Times Click Here
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