Most users would schedule their tasks using a cronjob, and that's perfectly reasonable.
Cronjobs are essentially used for scheduling tasks at certain intervals or exact time(s).
But what happens when the machine goes down at 00:00? or something even more probable, cron's systemd unit (like cronie) stops or does not start because someone forgot to (re)enable it.
Answer: The job never runs
In this linked blog post, I explain why I prefer using systemd timers in such business critical situations
Have a great one.
