Which NTP server does QubesOS use to synchronize timezone information?
Seems that the default is
sys-net, configured wtih the default (built-in) Fedora NTP servers:
Is it possible to change the default NTP server?
Sure you can change! From
man timesyncd.conf, in /etc/systemd/timesyncd.conf add:
The following settings are configured in the [Time] section:
NTP= A space-separated list of NTP server host names or IP addresses. During runtime this list is combined with any per-interface NTP servers acquired from systemd-networkd.service(8). systemd-timesyncd will contact all configured system or per-interface servers in turn, until one responds. When the empty string is assigned, the list of NTP servers is reset, and all prior assignments will have no effect. This setting defaults to an empty list.