Cron Expression Generator & Tester

Field Order:

Standard Cron (5 fields):

1. Minute (0-59)
2. Hour (0-23)
3. Day of Month (1-31)
4. Month (1-12 or JAN-DEC)
5. Day of Week (0-6 or SUN-SAT)

Quartz Cron (6-7 fields):

0. Second (0-59)
1. Minute (0-59)
2. Hour (0-23)
3. Day of Month (1-31)
4. Month (1-12 or JAN-DEC)
5. Day of Week (1-7 or SUN-SAT)
6. Year (optional, 1970-2099)

Special Characters:

• * - Matches any value
• ? - No specific value (Quartz only, for day fields)
• - - Defines a range (e.g., 1-5)
• , - Separates items in a list (e.g., 1,3,5)
• / - Specifies increments (e.g., */5 = every 5)
• L - Last (Quartz only, e.g., L in day = last day of month)
• W - Nearest weekday (Quartz only)
• # - Nth occurrence (Quartz only, e.g., 2#3 = 3rd Tuesday)

Common Use Cases:

• Database backups
• Scheduled reports
• Data synchronization
• Cache cleanup
• Email notifications
• System maintenance