DevToolBox

Cron Expression Tool

Parse, describe and predict cron expressions.

Readable Description

every 5 minutes

Field Breakdown
FieldValueMeaning
Minute*/5every 5 minutes
Hour*any hour
Day of Month*any day
Month*any month
Day of Week*any weekday
Next Run Times
  • 1Thu, Aug 20, 2026, 04:00 PM
  • 2Thu, Aug 20, 2026, 04:05 PM
  • 3Thu, Aug 20, 2026, 04:10 PM
  • 4Thu, Aug 20, 2026, 04:15 PM
  • 5Thu, Aug 20, 2026, 04:20 PM

How to Use

What is a cron expression? A cron expression schedules jobs by five fields: minute, hour, day of month, month and day of week. This tool parses such expressions, generates them visually and predicts the next run times.

How to parse 1. Enter a 5-field expression such as */5 * * * * or 0 9 * * 1. 2. Click Parse and Predict. 3. Read the human-friendly description and field breakdown. 4. See the next five trigger times in your local timezone.

Supported syntax - * — any value - */n — every n units - 1-5 — range - 1,2,3 — list - ? — day or weekday - L — last day or last weekday of the month - nW — nearest weekday to day n

How to generate 1. Choose a preset such as Every 5 minutes or Every weekday. 2. Or fine-tune each of the five fields manually. 3. Copy the generated expression.

Privacy All parsing and prediction happen locally in your browser.

Cron Expression Tool - Parse, Describe and Predict