Work through the task
Build or explain a numeric five-field cron expression and inspect upcoming UTC matches.
- Choose Build from fields or Explain expression; use minute, hour, day, month and weekday fields.
- Read the expanded values and up to five future UTC matches within the one-year horizon. Both restricted day fields use OR matching.
- Review the result before copying or downloading. Editing an input invalidates the previous result; keep an original if the transformation matters.
Example to check
*/15 9-17 * * 1-5 matches quarter-hour times during the stated weekday UTC hours.
Limits and output behavior
Only numeric five-field lists/ranges/steps are supported, with at most 200 characters per field. No jobs are scheduled. Names, seconds fields, timezone/DST simulation and executable commands are unsupported.
Troubleshooting
Use numeric five-field syntax with supported lists/ranges/steps. Names, seconds fields, commands and timezone/DST syntax are unsupported; an absent near-term match can exceed the bounded search horizon.
Questions
Does creating a cron expression schedule a job?
No. The tool builds/explains text and shows bounded future UTC matches. It does not install or run any job.
Input and privacy
Processing runs in this browser. Inputs are not saved automatically. An explicitly chosen local draft, where offered, is plaintext storage on this device. Downloaded files, clipboard contents and browser extensions have separate retention behavior.