Hi,

On Thu, 11 Apr 2024 17:26:53 +0930
Arthur Marsh <arthur.marsh@???> wrote:

> Hi, it appears that ifupdown package calls
>
> /etc/network/if-up.d/ntpsec-ntpdate
>
> when the network interface is brought up, which happens before
> /etc/init.d/ntpsec start is called.
>

It looks there is already a report of this in Debian #1068796

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1068804