🕒 Cron Expression Parser

Validate and understand cron expressions. Supports both 5-field (standard) and 6-field (with seconds) formats.

Format: [seconds] minute hour day-of-month month day-of-week
📖 Quick Reference
Symbol Meaning Example
*Any value* * * * * = every minute
*/nEvery n units*/15 * * * * = every 15 minutes
n-mRange0 9-17 * * * = 9 AM to 5 PM
n,mList0 0 1,15 * * = 1st and 15th
?No specific valueUsed for day-of-month or day-of-week

Common Examples

  • 0 * * * * — Every hour at minute 0
  • 0 0 * * * — Every day at midnight
  • 0 9 * * 1-5 — Weekdays at 9 AM
  • */5 * * * * — Every 5 minutes
  • 0 0 1 * * — First day of every month at midnight