GitHub Enterprise 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. Open the Management Console settings in a browser window.

    http(s)://hostname/setup/settings

  2. In the left sidebar, click Time. Time in the sidebar

  3. Type the hostname of the primary NTP server in Primary NTP server and the hostname of the secondary NTP server in Secondary NTP server. Primary and secondary NTP servers
  4. At the bottom of the page, click Save settings. Save settings
  5. 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 ntpdate command to synchronize the server with an NTP server. For example:
sudo service ntp stop
sudo ntpdate 0.pool.ntp.org
sudo service ntp start