Cron job Every 12 hours
0 */12 * * *
minute
hour
day (month)
month
day (week)
At 0 minutes past the hour, every 12 hours
Field breakdown
| Field | Value | Meaning |
|---|---|---|
| minute | 0 | at minute 0 |
| hour | */12 | every 12 hours |
| day (month) | * | any value |
| month | * | any value |
| day (week) | * | any value |
Crontab line
0 */12 * * * /path/to/script.shThe expression 0 */12 * * * schedules a cron job to run every 12 hours. This schedule belongs to the "Hour" category and is frequently used for periodic maintenance tasks, report generation, or batch processing that runs several times throughout the day.