PresenTense Server is an RFC standard multi protocol time server supporting even the latest NTP4 standard. You can use PresenTense Server to synchronize your PC to a primary time source such as an atomic clock on the internet or an inhouse GPS reciever and offer time services to clients on your local area network. Most leading GPS and Radio hardware clocks are supported via the serial port. Now supports Free Run so that you maintain accurate time even if your internet connection goes down or your reference clock fails. New algorithmic filters added to achieve even higher accuracy when using an unreliable internet connection.