Cron expression parser

Explain a cron expression in plain English and list its next run times.

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Cron expression parser

What is the cron expression parser?

The cron expression parser explains a cron schedule in plain English and lists its next 10 run times in the time zone you choose. It supports lists, ranges, steps, month and day names and the @daily, @weekly and other shortcuts.

Invalid values are explained clearly, so it's also a quick cron syntax checker before you save a job.

How to use the cron expression parser

  1. 1Type or paste a cron expression.
  2. 2Choose the time zone.
  3. 3Read the description and the next run times.

Features

Plain English

What the schedule means.

Next 10 runs

In any time zone.

Full syntax

*, lists, ranges, steps, names and @macros.

Field table

The allowed values of each field.

Frequently asked questions

What does */15 mean?

Every 15 units: */15 in the minute field runs at 0, 15, 30 and 45.

What if both day fields are set?

Standard cron runs the job when either the day of the month or the day of the week matches.

Are 6-field expressions supported?

No, the parser follows standard 5-field cron. Remove the seconds field first.