[Karellen]

As well as the already-mentioned `n * * * *` solution, there's also dropping a symlink in /etc/cron.hourly to the program to run. Or a 2-line shell script if you need to add command-line params. (The other line is the shebang.)

[js2]

The cron.hourly directory is a non-standard Linux concept provided by run-parts. The FreeBSD equivalent is periodic, but that's really for system tasks and doesn't have anything more granular than daily.

[Karellen]

Yeah, but the comparison was specifically comparing to systemd timers, so I'm pretty sure the GP wasn't considering non-Linux compatibility anyway.