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Cron Expression Humanizer

Convert cron expressions to human-readable descriptions and predict next execution times

Choose between 5-field standard format or 6-field extended format with seconds
Status:
Valid
Load a random sample cron expression to test
Clear the cron expression input and results

Cron Expression

5-Field Format (left to right):

Minute:0-59
Hour:0-23
Day of Month:1-31
Month:1-12
Day of Week:0-7 (0 and 7 = Sunday)

Human Description

Human-readable description will appear here...

Cron Expression Guide

Special Characters

* - Any value (wildcard)
? - No specific value (day fields only)
- - Range of values (e.g., 1-5)
, - List of values (e.g., 1,3,5)
/ - Step values (e.g., */2)

Common Examples

0 9 * * 1-5 - Weekdays at 9 AM
30 14 1 * * - 1st of month at 2:30 PM
0 */6 * * * - Every 6 hours
0 0 * * 0 - Every Sunday at midnight

Cron Expression Humanizer - Cron Job Scheduler Tool

Cron expressions define schedules using compact syntax. This page translates cron into human‑readable text and helps you validate when jobs will run, including edge cases across timezones.

What is a cron expression?

A standard 5‑field cron uses minutes, hours, day of month, month, and day of week. Extended formats add seconds or year. Wildcards, ranges, lists, and step values control frequency—for example, 0 0 * * 1 runs every Monday at midnight.

How humanization works

The tool parses your expression, expands fields into actual run times, and renders a friendly description. It highlights conflicts, shows upcoming run instances, and can simulate different timezones so you see the real behavior in production.

About the Cron Humanizer

Use it to review schedules during code review, communicate timing to non‑technical stakeholders, and ensure that daylight saving transitions won’t break expectations.

Readable schedules reduce operational toil. Document intent alongside expressions and verify edge cases before deploying.