swee@funnelcake:~ $ sudo apt install ntp
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following additional packages will be installed:
  ntpsec python3-ntp
Suggested packages:
  certbot ntpsec-doc ntpsec-ntpviz
The following packages will be REMOVED:
  systemd-timesyncd
The following NEW packages will be installed:
  ntp ntpsec python3-ntp
0 upgraded, 3 newly installed, 1 to remove and 0 not upgraded.
Need to get 446 kB of archives.
After this operation, 1,291 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://deb.debian.org/debian bookworm/main arm64 python3-ntp arm64 1.2.2+dfsg1-1+deb12u1 [94.0 kB]
Get:2 http://deb.debian.org/debian bookworm/main arm64 ntpsec arm64 1.2.2+dfsg1-1+deb12u1 [330 kB]
Get:3 http://deb.debian.org/debian bookworm/main arm64 ntp all 1:4.2.8p15+dfsg-2~1.2.2+dfsg1-1+deb12u1 [22.0 kB]
Fetched 446 kB in 1s (819 kB/s)
(Reading database ... 84226 files and directories currently installed.)
Removing systemd-timesyncd (252.36-1~deb12u1) ...
Selecting previously unselected package python3-ntp.
(Reading database ... 84210 files and directories currently installed.)
Preparing to unpack .../python3-ntp_1.2.2+dfsg1-1+deb12u1_arm64.deb ...
Unpacking python3-ntp (1.2.2+dfsg1-1+deb12u1) ...
Selecting previously unselected package ntpsec.
Preparing to unpack .../ntpsec_1.2.2+dfsg1-1+deb12u1_arm64.deb ...
Unpacking ntpsec (1.2.2+dfsg1-1+deb12u1) ...
Selecting previously unselected package ntp.
Preparing to unpack .../ntp_1%3a4.2.8p15+dfsg-2~1.2.2+dfsg1-1+deb12u1_all.deb ...
Unpacking ntp (1:4.2.8p15+dfsg-2~1.2.2+dfsg1-1+deb12u1) ...
Setting up python3-ntp (1.2.2+dfsg1-1+deb12u1) ...
Setting up ntpsec (1.2.2+dfsg1-1+deb12u1) ...
Created symlink /etc/systemd/system/timers.target.wants/ntpsec-rotate-stats.timer → /lib/systemd/system/ntpsec-rotate-stats.timer.
Created symlink /etc/systemd/system/network-pre.target.wants/ntpsec-systemd-netif.path → /lib/systemd/system/ntpsec-systemd-netif.path.
Created symlink /etc/systemd/system/ntp.service → /lib/systemd/system/ntpsec.service.
Created symlink /etc/systemd/system/ntpd.service → /lib/systemd/system/ntpsec.service.
Created symlink /etc/systemd/system/multi-user.target.wants/ntpsec.service → /lib/systemd/system/ntpsec.service.
Setting up ntp (1:4.2.8p15+dfsg-2~1.2.2+dfsg1-1+deb12u1) ...
Processing triggers for man-db (2.11.2-2) ...
Processing triggers for dbus (1.14.10-1~deb12u1) ...
swee@funnelcake:~ $ which ntpd
/usr/sbin/ntpd