Convert cron expressions into systemd .timer and .service unit files
5-field cron (min hr day month weekday) or shortcuts like @daily
Filename: my-job.timer / .service
Every 5 min
*/5 * * * *
Every hour
0 * * * *
Daily midnight
0 0 * * *
Every Monday 9 AM
0 9 * * 1
First of month
0 0 1 * *
Weekdays noon
0 12 * * 1-5
@daily shortcut
@daily
@hourly shortcut
@hourly