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Check your cron before its next run

Understand your expression and preview upcoming runs in your job’s timezone.

minute · hour · day of month · month · day of week

Try an example

Calculated in your browser. No commands are executed. Uses the same calculation as Tickwatch monitors.

When will your job run?

Check a schedule to see what it means and when it runs next.

How to read cron

Five fields: minute (0–59), hour (0–23), day of month (1–31), month (1–12), day of week (0–7; 0 and 7 mean Sunday). A star matches any value, a comma lists values, a dash defines a range, and a slash sets a step within a field.

For example, */15 * * * * runs at minutes 00, 15, 30 and 45 of every hour. */40 runs at 00 and 40: it is not a continuous 40-minute interval.

What the checker covers

This tool accepts five-field Unix cron. Seconds, Quartz, @reboot, H, L and # are outside its supported syntax. UTC offsets change during daylight saving transitions; skipped or repeated local hours may be handled differently by your scheduler. Check its behavior separately.

A valid schedule does not prove that the command ran. Tickwatch waits for job signals and alerts on missed runs, failures or excessive duration.