Cron expression for every day at 3:30 AM
Runs the job once a day at 3:30 AM in whatever timezone the scheduler runs in.
30 3 * * *
At 03:30 AM
Field by field
- Minute · 0–59
30only at minute 30 - Hour · 0–23
3only at 03:00 - Day of month · 1–31
*every day of the month - Month · 1–12 or JAN–DEC
*every month - Day of week · 0–7 or SUN–SAT
*every day of the week
Next runs in your local time
Where this cron expression shows up
- Nightly database backups
- Log rotation and pruning
- Batch imports that have to finish before the workday starts
Common variations
Ranges, steps, and names are spelled out on the cheat sheet.