cronjobs

Hello I have some cronjobs in my config. What did the do?

15 1 * * * /opt/psa/libexec/modules/watchdog/cp/pack-sysstats day
0 1 * * 1 /opt/psa/libexec/modules/watchdog/cp/send-report weekly
15 1 1 * * /opt/psa/libexec/modules/watchdog/cp/pack-sysstats month
20 1 * * * /opt/psa/libexec/modules/watchdog/cp/clean-events
10 1 * * *...

cronjobs