Run the job every (* every hour) 17 minutes after the hour (* every day)
Run the job (* every Month) on the 1st day of the month at 6:52am
Run the job at 6:25 (* every day)
Run the job on Sunday at 6:47 am
By reading the entries in crontab you can determine what jobs (script files) will run and at what time.
The * means ALL
Sunday can be 0 or 7