Cron Next Run Calculator

Enter a cron expression and UTC starting time to calculate upcoming matching minutes locally in your browser.

Cron expression

Reference UTC

Runs

ReadySearches minute-by-minute in UTC with a bounded horizon; the daemon time zone on a real server may differ.

Upcoming-run horizon & cadence audit

The next matching timestamps are only the start of a deployment decision. Measure time to first run, spacing consistency and how much future horizon the current projection actually covers.

Maximum acceptable first wait (hours)Maximum expected gap (hours)Minimum projected horizon (hours)

—Wait to first run

—Median gap

—Projected horizon

—Schedule audit

Ready.

Run transition	Gap	Within expected gap?	Future coverage

This audit reads the UTC timestamps generated by the calculator above. A production scheduler can use a different daemon time zone, DST policy or cron dialect.

Build → explain → project → verify

Treat cron as a deployment configuration: confirm dialect, field count, timezone, day-of-month/day-of-week behavior and several future runs before shipping.