1)   PresenTense NTP Auditor 3.7 PresenTense NTP Auditor monitors your computer's built-in clock and compares it's time to the real time. PresenTense NTP Auditor can save logs for days, months and years so you can PROVE what time your computer had at any given point. 2)   Express Timesync 3.4.1207 Express Timesync is an ideal solution for keeping the computer clock accurate. It supports SNTP, TIME, SOCKS 4, SOCKS 4A and SOCK5 protocols. The program provides a wide range of options for managing your computer clock time and keeping it accurate.