There are may such progams dark06 just Google

TTMaker free download. TTMaker is advanced timetabling and schedulingsoftware. It creates clash-free timetables in secondsand works in any timetabling application....

TSTC (Time Server - Time Client) free download. This is a program implementing the NTP time serverprotocol. It can both be a time client and a time server. It is usefull to build a time network chai...

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