{"columns":["Expression","Kind","Meaning"],"rows":[["Minute (field 1)","Field","0–59"],["Hour (field 2)","Field","0–23"],["Day of month (field 3)","Field","1–31"],["Month (field 4)","Field","1–12 or JAN–DEC"],["Day of week (field 5)","Field","0–7 or SUN–SAT; 0 and 7 are both Sunday"],["*","Operator","Every value of the field"],[",","Operator","A list of values: 1,15 means the 1st and 15th"],["-","Operator","A range: 1-5 means Monday to Friday in the weekday field"],["/","Operator","A step: */15 in the minute field means every 15 minutes"],["* * * * *","Expression","Every minute"],["*/5 * * * *","Expression","Every 5 minutes"],["*/15 * * * *","Expression","Every 15 minutes"],["0 * * * *","Expression","Every hour, on the hour"],["0 */2 * * *","Expression","Every 2 hours"],["0 0 * * *","Expression","Every day at midnight"],["0 9 * * *","Expression","Every day at 09:00"],["30 18 * * *","Expression","Every day at 18:30"],["0 9 * * 1-5","Expression","09:00 on weekdays"],["0 9-17 * * 1-5","Expression","Every hour from 09:00 to 17:00 on weekdays"],["0 0 * * 0","Expression","Every Sunday at midnight"],["0 0 * * 1","Expression","Every Monday at midnight"],["0 0 * * 6,0","Expression","Saturday and Sunday at midnight"],["0 0 1 * *","Expression","First day of every month at midnight"],["0 0 15 * *","Expression","15th of every month at midnight"],["0 0 1,15 * *","Expression","1st and 15th of every month"],["0 0 1 */3 *","Expression","First day of every quarter"],["0 0 1 1 *","Expression","Once a year, 1 January at midnight"],["0 3 * * *","Expression","Every day at 03:00, a common backup slot"],["@reboot","Shortcut","Once, when cron starts"],["@yearly","Shortcut","Same as 0 0 1 1 * (also @annually)"],["@monthly","Shortcut","Same as 0 0 1 * *"],["@weekly","Shortcut","Same as 0 0 * * 0"],["@daily","Shortcut","Same as 0 0 * * * (also @midnight)"],["@hourly","Shortcut","Same as 0 * * * *"]]}