Time Synchronization - Proxmox VE
pve.proxmox.com › wiki › Time_SynchronizationTime synchronization between nodes can be achieved with the “Network Time Protocol” ( NTP ). Proxmox VE uses systemd-timesyncd as NTP client by default, preconfigured to use a set of public servers. This setup works out of the box in most cases. Using Custom NTP Servers In some cases, it might be desired to not use the default NTP servers.