Q: Can I use the Windows Time service for applications that require accuracy within a second?

A: The Windows Time service that is part of the Windows OS is designed to ensure systems are time-synchronized enough for Kerberos authentication to work, and for basic time synchronization as outlined at this Microsoft webpage

This time synchronization doesn't ensure time is synchronized within a couple of seconds, which some applications require, and is therefore not suitable for them.

If you require synchronization within a second or two, then you should use third-party time synchronization solutions such as those listed at the NIST site


Have more questions? See all of John Savill's FAQs.

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.