Question 1

What is a cron expression?

Accepted Answer

A cron expression is a string of 5 fields (minute, hour, day of month, month, day of week) that defines a schedule for recurring tasks in Unix-like systems.

Question 2

What does each field in a cron expression mean?

Accepted Answer

The 5 fields are: minute (0-59), hour (0-23), day of month (1-31), month (1-12), and day of week (0-6, where 0 is Sunday).

Question 3

What does * mean in cron?

Accepted Answer

The asterisk (*) means "every" — it matches all possible values for that field. For example, * in the hour field means every hour.

Question 4

Can I use this for Kubernetes CronJobs?

Accepted Answer

Yes. Kubernetes CronJobs use standard 5-field cron syntax, which is exactly what this tool generates.

Question 5

Is this tool free?

Accepted Answer

Yes, completely free. No signup, no limits. All processing happens in your browser.

Cron Expression Generator

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