⏰Cron Expression Parser

Parse and explain cron expressions in human-readable format.

Cron Expression

Format: minute hour day-of-month month weekday

Presets

Description

At 09:00 on Monday through Friday

Field Breakdown

Field	Value	Range	Description
Minute	0	0-59	0
Hour	9	0-23	9
Day of Month	*	1-31	every day
Month	*	1-12	every month
Weekday	1-5	0-6 (Sun-Sat)	Monday through Friday

Next 5 Run Times

14/6/2026, 9:00:00 AM

24/7/2026, 9:00:00 AM

34/8/2026, 9:00:00 AM

44/9/2026, 9:00:00 AM

54/10/2026, 9:00:00 AM

About Cron Expression Parser

Parse cron expressions and see a plain-English explanation of the schedule they define. Enter any standard five-field cron expression and instantly understand when it will run, including minute, hour, day of month, month, and day of week breakdowns. Invaluable for verifying crontab schedules.

How to Use Cron Expression Parser

1
Enter the cron expression
Type a cron expression like 0 9 * * 1-5 into the input field.
2
Read the explanation
See a human-readable description of when the cron job will execute.
3
Verify the schedule
Check that the description matches your intended schedule before deploying.

Common Use Cases

Verifying crontab schedules before deploying to production
Understanding cron expressions in CI/CD pipeline configs
Building scheduled tasks with the correct timing
Debugging why a cron job runs at unexpected times

Frequently Asked Questions

What is a cron expression?

A cron expression is a string of five fields (minute, hour, day of month, month, day of week) that defines a recurring schedule. It is used in Unix crontab, CI/CD pipelines, and task schedulers.

What does * mean in a cron expression?

The asterisk (*) is a wildcard that means 'every' value for that field. For example, * in the minute field means 'every minute'.

Does it support extended cron syntax?

The tool supports standard five-field cron syntax including ranges (1-5), lists (1,3,5), steps (*/5), and common shorthand expressions.