Cer­tichron is pleased to mir­ror the US release of the Mein­berg NTP for WIn­dows port of the NTP​.ORG Ref­er­ence Release. Mein­berg has com­plied and made avail­able as part of its sup­port of the NTP​.ORG time ser­vice efforts, the ref­er­ence code-​​​​based for NTP which is com­piled under the Win­dows C/​​C++ Envi­ron­ment. Feel free to down­load and […]

Your PC uses two clocks to keep time; a soft­ware clock that runs while your PC is on and a hard­ware clock that keeps time while the PC is pow­ered down. Hard­ware Clock Most PC’s have a quartz crys­tal clock that runs off a bat­tery. These clocks are rel­a­tively inex­pen­sive and can gain or lose 5 to 10 sec­onds a day (in most […]

Your PC uses two clocks to keep time; a soft­ware clock that runs while your PC is on and a hard­ware clock that keeps time while the PC is pow­ered down. Hard­ware Clock Most PC’s have a quartz crys­tal clock that runs off a bat­tery. These clocks are rel­a­tively inex­pen­sive and can gain or lose 5 to 10 sec­onds a day (in most […]

Where do you get the time on your PC? If you are on a net­work, then likely your net­work admin­is­tra­tor has set up a domain con­troller that dis­trib­utes time across the net­work. And likely that domain con­troller gets its time from an exter­nal source such as GPS or from the Inter­net. If you are not on a formal […]

Latency Latency is the amount of addi­tional time (i.e. delay) nec­es­sary to com­plete a task com­pared to a base­line. In a com­puter net­work­ing the assump­tion is that com­mu­ni­ca­tion should be instan­ta­neous, hence the amount of time it actu­ally takes to com­plete the com­mu­ni­ca­tion is con­sid­ered the amount of latency. From a sim­plis­tic stand­point, net­work latency can then be measured […]

Prob­lem: End-​​​​user can­not con­nect to pub­lic NIST time servers. Solu­tion: Check for the local fire­wall block­ing NTP ser­vices. Ini­tially the best tack to take is to ver­ify whether the prob­lem is local or remote, so try another time server. If WIN­DOWS type client, then check reg­istry con­trols for proper time set­ting. If UNIX or other […]

How can I get accu­rate time over the Inter­net? There are mul­ti­ple ways to set the time on your com­puter. If price is no object, you can pur­chase an atomic or GPS clock. Or you can go the inex­pen­sive route and syn­chro­nize your time set­tings with one or more of the free time servers on the […]