You can check it using the timedatectl command, it should output something like it:
Local time: Fri 2021-11-26 13:24:29 -05
Universal time: Fri 2021-11-26 18:24:29 UTC
RTC time: Fri 2021-11-26 18:24:29
Time zone: America/Bogota (-05, -0500)
System clock synchronized: yes
NTP service: active
RTC in local TZ: no
It's activated via systemd-timesyncd, why are you saying that it isn't activated by default when the original question was about some dependencies on a non-systemd distro? I just pointed to how it works and how to enable it if you are using systemd. Typical XY problem.
timedatectl set-ntp true is the equivalent to enabling systemd-timesyncd that's what we do in the installation process. Basically when you run timedatectl set-ntp true it enables the service in the background.