Free Software Downloads

100% reference NTP implementation:
RFC5905, RFC5906, RFC5908, RFC5909   
32/64-bit Microsoft platforms incl.: 
Microsoft Windows 10/8/7
Server 2016/2012/2008 

Network Time Protocol for Windows 32/64 bit

Microsoft Windows allows you by defaults to synchronize your PC clock via Internet. However, standard built-in Windows SNTP client has serious functional and cyber-security limitations compering to std. reference NTP implementation ( A niche nature of synchronization makes this topic be a “dark side of the moon”. The original Windows SNTP synchronization client leaves a time gaps easy to manipulate PC time like a time machine. Downloading and using 100% reference NTP helps keep continuous, monotonic, high accurate time on your PC.

Elproma has prepared a FREE Windows binary .EXE compilation of reference NTP. All NTP software on this page is digitally signed to ensure its integrity and originality. Attached binary .EXE compilation is based on C-code of NTP v4.2.8. It supports both: native NTP Server and NTP client operating stratum 0-15. It is x1000 more accurate compering to std. Windows. It uses slew-down clock adjusting technology synchronizing both frequency & phase of Windows clock operating at OS kernel level. Using this software, you are improving synchronization accuracy and cyber-security of your Windows by preventing time tempering and ensuring there will be no time jumps (time gaps)- no turning back clock nor pulling it forward. Please compare native ref. NTP and Windows below:

SHA-256:  5d214a679a1c7a25d9134c8249bf44d487b31b18c79fc797fce985c44e7ff18e 


Native NTP


Windows SNTP

NTP Client  support   +       +
NTP Server support   +       -
Ref. TIME inputs  NTP   many        one
Ref. TIME redundancy   multilevel       none
Stratum 0-15 level    +       -
MD5 Authentication   +       -
Sync accuracy    100 ms       100 us
Leap second support   +       -
Remote TIME monitoring   +       -
Frequency adjusting   +       -
Works with any Windows   +       +