Ling.Tools

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Cron expression

Validate five- or six-field Cron expressions and inspect their next execution times in UTC or your browser timezone.

Input & settings

01
Configure tool input
Processed in your browser. Your input is never uploaded or saved.

Result

02

Ready when you are

Set up your input and run the tool. Your result will appear right here.

Private · Instant · Local

GUIDE & CONTEXT

About this tool

Cron describes recurring calendar schedules using fields for minutes, hours and date constraints; six-field expressions add seconds at the beginning. Preview upcoming runs before configuring a job. Timezones, daylight saving changes and Cron dialects can affect behavior, so compare the result with the scheduler that will actually execute it.

How to use it

  1. Enter a five-field expression, or a six-field expression with seconds first.
  2. Choose UTC or the browser timezone and the number of upcoming runs.
  3. Parse the schedule and inspect the description and execution times.
Example

0 9 * * 1-5 means 09:00 on Monday through Friday in the selected timezone. */15 * * * * runs every 15 minutes.

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