Explanation:
cron-entry Text string that consists of five fields separated by spaces. The fields represent the times and dates when CRON timer events will be triggered. There are 5 values you can specify:
minute - this controls what minute of the hour the command will fire values between 0 and 59 hour - this controls what hour the command will run - specified in the 24 hour clock format 0-23 (0=midnight) day-of-month - A number in the range from 1 to 31 that specifies the day of the month when a CRON timer event is triggered.
month - A number in the range from 1 to 12 or the first three letters (not case-sensitive) of the name of the month in which a CRON timer event is triggered.
day-of-week - A number in the range from 0 to 6 (Sunday is 0) or the first three letters (not case-sensitive) of the name of the day when a CRON timer event is triggered.
Examples:
01 * * * * This command is run at one min past every hour
17 8 * * * This command is run daily at 8:17 am
*/1 **** this command runs every minute
Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/eem/command/eem-cr-book/eem- cr-e2.html This cron runs from Sunday to Thursday -> 0-4