⏰Cron Expression Parser

How to Use

1. 1

   Enter a cron expression

   Type a 5-field cron expression: minute (0–59), hour (0–23), day-of-month (1–31), month (1–12), day-of-week (0–7).

2. 2

   Use wildcards and operators

   Use * for "any", */n for "every n", ranges (1–5), and lists (1,3,5) in any field.

3. 3

   Check the schedule

   The tool shows a human-readable description and the next 10 scheduled run times based on the current time.

FAQ

What is cron syntax?

Cron is a time-based job scheduler in Unix. A cron expression has 5 fields: minute (0–59), hour (0–23), day-of-month (1–31), month (1–12), and day-of-week (0–7, where 0 and 7 are Sunday). Each field can use *, numbers, ranges (1-5), lists (1,3,5), or steps (*/5).

What does */ mean?

*/n means "every n units". For example, */15 in the minute field means "every 15 minutes", and */2 in the hour field means "every 2 hours".

What are common cron expressions?

* * * * * = every minute | 0 * * * * = every hour | 0 0 * * * = daily at midnight | 0 9 * * 1 = every Monday at 9am | 0 0 1 * * = first day of every month

How are day-of-month and day-of-week combined?

When both day-of-month and day-of-week are non-wildcard, the job runs when either condition is met (OR logic). When only one is non-wildcard, it restricts the schedule.