Cron Parser

Parse cron expressions and preview next run times.

🔒 local memory only
Initializing Cron Parser in local browser environment…

How to use Cron Parser

  1. Enter a standard 5-part cron expression (minute hour day-of-month month day-of-week) or 6-part expression with seconds.
  2. Click "Parse" or press Enter to validate syntax.
  3. Read the human-readable schedule description and view the list of the next 10 calculated execution times.

Why use this local-first tool?

  • Supports standard cron syntax, step values (/), ranges (-), and wildcards (*).
  • Calculates accurate upcoming run times relative to your local timezone.
  • Provides common one-click presets like hourly, daily 9am, weekdays, and monthly runs.

Frequently Asked Questions

What cron formats are supported?

The parser supports standard 5-field UNIX crontab format as well as 6-field formats with leading seconds.

Does it take day-of-week 0 vs 7 into account?

Yes, both 0 and 7 are properly treated as Sunday according to UNIX and cron standards.

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