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Cron Expression Parser

Demystify complex cron expressions. Translate any crontab string into clear human sentences with upcoming schedule breakdowns.

Calculated locally in your browser.
Generated Cron Expression
0 9 * * 1-5
Runs at 09:00, Monday through Friday

Cron Schedule Builder

Common Presets

Next Upcoming Scheduled Executions

Execution #1Tue, Sep 22, 06:04 PM
Execution #2Wed, Sep 23, 06:04 PM
Execution #3Thu, Sep 24, 06:04 PM
Execution #4Fri, Sep 25, 06:04 PM
Execution #5Sat, Sep 26, 06:04 PM
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How to Use Cron Expression Parser

1

Enter Cron String

Paste any 5-field or 6-field cron expression (e.g. '*/15 * * * *').

2

Read Description

See plain English explanation (e.g. 'Every 15 minutes').

3

Inspect Next Runs

Review next calculated trigger dates and times.

About Cron Expression Parser

Evaluates each cron field against step, range, and list operators to generate natural language grammatical sentences.

Supported Formats

Cron

Operational Limits

  • Supports standard POSIX 5-field cron syntax

Key Features

  • Instant human translation
  • Breakdown by Minute, Hour, Day, Month, and Weekday
  • Calculates next upcoming trigger dates
  • Validates syntax errors immediately

Frequently Asked Questions

It executes every 5 minutes from minute 0 through 59.