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Cron Expression Parser

Choose Unix, seconds or Quartz flavor and an IANA timezone.

Local execution receiptinput path disclosedTool content stays out of MonoTools URLs and API requests.
Working input
Browser memory
Cross-tool handoff
Session only · 10 min
URL payload
Never
Export
Explicit action

Verify it: open DevTools Network, clear the log, use the tool, then inspect fetch/XHR requests. Page assets and optional aggregate analytics may use the network; tool input is not included.

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How to use

  1. 01Type a cron expression like 0 9 * * 1-5.
  2. 02Read the plain-English description.
  3. 03Inspect the next 24 wall times, UTC instants, offsets and DST changes.
02

FAQ

Which cron flavor is supported?
Unix five-field, six-field schedules with seconds, and Quartz six/seven-field expressions are supported with an optional year constraint.
How are DST transitions shown?
Each run includes wall time, UTC instant and numeric offset. Offset changes and unusually long gaps are called out explicitly.
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