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Cron Expression Parser

Developer Tools

Human-readable meaning and next 10 run times

Quick Answer

Cron Expression Parser: Human-readable meaning and next 10 run times. * any · */n every n · a-b range · a,b list · a-b/n step.

Cron expression (5 fields)

Human-readable

At 09:00 on weekdays

Minute

0

0

Hour

9

9

Day

*

31 vals

Month

*

12 vals

Weekday

1-5

1,2,3,4,5

Next 5 runs

Syntax reference

TokenMeaningExample
*Every value* * * * *
,List0 9,12,18 * * *
-Range0 9-18 * * 1-5
/Step*/10 * * * *
Weekday0=Sun … 6=Sat (some allow 7=Sun)0 9 * * 1

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How to Use

  1. Paste or type content: drop code/text into the Cron Expression Parser or fill the parameters.
  2. Choose mode/options: switch format, rules or processing as needed.
  3. Live output: results appear instantly — nothing is submitted, data stays in your browser.
  4. One-click copy: copy the output straight into your development environment.

Key Points

  • Cron Expression Parser is a free online developer tool — open and use, no sign-up.
  • All calculations run locally in your browser; your data never leaves the device.
  • Key capability: Human-readable meaning and next 10 run times.
  • Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

Cron expression (5 fields: min hour day month weekday)

* any · */n every n · a-b range · a,b list · a-b/n step
0 9 * * 1-5 = weekdays 9:00 · day and weekday are OR-ed
Runs in server local timezone

FAQ

How do I use the Cron Expression Parser?
Open the page and fill in the input fields — results update automatically. Human-readable meaning and next 10 run times.
Are the results accurate?
Yes. Standard formulas and conversion factors are used and verified.
Is it free? Do I need to sign up?
Completely free. No registration, login or download required.
Does it work on mobile?
Yes. The responsive design works on phones, tablets and desktops.
Is my data saved?
No. Everything runs locally in your browser.

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Source & Updates

Based on RFC 4648, ECMA-262 and related specifications. Last updated: 2025-07

Last updated:

Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.

Maintained and periodically reviewed by the YiJianSuan editorial team — review process in ourEditorial Policy.

Cite this page: YiJianSuan. Cron Expression Parser[EB/OL]. https://www.yijiansuan.com/en/c/dev/cron

Results provided by this tool are for reference only and do not constitute professional advice.