English
No results found.

Explore by product

Enterprise administrators
  • Get started
  • Account and profile
  • Authentication
  • Repositories
  • GitHub
  • Enterprise administrators
  • Billing and payments
  • Organizations
  • Code security
  • GitHub Issues
  • GitHub Actions
  • GitHub Codespaces
  • GitHub Packages
  • Search on GitHub
  • Developers
  • REST API
  • GraphQL API
  • GitHub CLI
  • GitHub Discussions
  • GitHub Sponsors
  • Building communities
  • GitHub Pages
  • Education
  • GitHub Desktop
  • Atom
  • Electron
  • CodeQL
  • npm
    • English
  • English
  • 简体中文 (Simplified Chinese)
  • 日本語 (Japanese)
  • Español (Spanish)
  • Português do Brasil (Portuguese)

    • This version of GitHub Enterprise was discontinued on 2021-09-23. No patch releases will be made, even for critical security issues. For better performance, improved security, and new features, upgrade to the latest version of GitHub Enterprise. For help with the upgrade, contact GitHub Enterprise support.

    Article version

    In this article

    Configuring time synchronization

    GitHub Enterprise Server automatically synchronizes its clock by connecting to NTP servers. You can set the NTP servers that are used to synchronize the clock, or you can use the default NTP servers.

    Changing the default NTP servers

    1. From an administrative account on GitHub Enterprise Server, click in the upper-right corner of any page. Rocketship icon for accessing site admin settings
    2. In the left sidebar, click Management Console. Management Console tab in the left sidebar
    3. In the left sidebar, click Time. The Time button in the Management Console sidebar
    4. Under "Primary NTP server," type the hostname of the primary NTP server. Under "Secondary NTP server," type the hostname of the secondary NTP server. The fields for primary and secondary NTP servers in the Management Console
    5. At the bottom of the page, click Save settings. The Save settings button in the Management Console
    6. Wait for the configuration run to complete.

    Correcting a large time drift

    The NTP protocol continuously corrects small time synchronization discrepancies. You can use the administrative shell to synchronize time immediately.

    Notes:

    • You can't modify the Coordinated Universal Time (UTC) zone.
    • You should prevent your hypervisor from trying to set the virtual machine's clock. For more information, see the documentation provided by the virtualization provider.
    • Use the chronyc command to synchronize the server with the configured NTP server. For example:
    $ sudo chronyc -a makestep