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There are any number of software packages that can set your computer time from a GPS. Any GPS you can connect to your computer will be fine. There are many available, both USB and bluetooth. Just buy whichever suits your fancy, they all work the same way. If you choose a bluetooth GPS, you'll obviously need bluetooth capability on your server, and that can be done with a cheap dongle.
Having a GPS receiver is the next best thing to having your own atomic clock, because the receiver gets the time from several atomic clocks, all synchronized precisely. The only signals the receiver gets are the time, and it calculates a position based on the difference in the time it takes for the signals from different satellites to reach it. The GPS system needs such precise time that the effects of relativity caused by the speed of the satellites, and the lack of gravity affecting them, have to be considered. Calculating a position to within 3 meters requires knowing the time within microseconds. Using GPS will give you the most precision available for the time, if you really need it to that precision. I don't need it, but I set the time on my Android phone using the internal GPS receiver and software. Just because I can.
Here's something I've noticed, if there's a "get a quote" button or if they don't list the price ... you can't afford it
I could be wrong tho...
Yep, could be. It depends, as it may indicate a better, more competitive, price. Resellers often must sign/agree to contracts which contain a "Minimum Advertised Price", a.k.a. "MAP". This is the lowest price they can _advertise_ on the web, print ads, etc. They are, however, still free to _sell_ it for less. Hence "call for quote" or "add to basket" before these below MAP prices can be revealed.