PresenTense - Version 2.0 A network time client for Windows NT 4.0 or higher. It synchronizes a PC's system clock to a network time server. PresenTense operates as an NT system service and features multiprotocol support, a small RAM footprint, secure setup and configuration, remote monitoring and administration, and more. Support for redundant time server provides automatic failover when primary time server fails. Support for email alarm notification when serious error condition occurs. Unregistered version needs restarting after 24 hours.