GuerrillaNtp is a simple NTP (SNTP) client written in C# that can be embedded in desktop .NET applications to provide them with accurate network time even when the system clock is unsynchronized.

// query the SNTP server
TimeSpan offset;
using (var ntp = new NtpClient(Dns.GetHostAddresses("pool.ntp.org")[0]))
    offset = ntp.GetCorrectionOffset();

// use the offset throughout your app
var accurateTime = DateTime.UtcNow + offset;

• Documentation: Tutorial, API Reference
• Download: see Tutorial
• Sources: GitHub, Bitbucket
• Issues: GitHub, Bitbucket
• License: Apache License 2.0