DevOps Examples
Kubernetes CronJob Daily Cron Expression
Schedule a Kubernetes CronJob daily at midnight with 0 0 * * *.
Cron expression
0 0 * * *Plain English explanation
Runs every day at 12:00 AM.
Kubernetes CronJob uses cron-style schedules, but production behavior also depends on CronJob settings such as concurrencyPolicy and timeZone support.
Field breakdown
Minute
0
At minute 0
0-59
Hour
0
At 12 AM
0-23
Day of Month
*
Every day of the month
1-31
Month
*
Every month
1-12
Day of Week
*
Every day of the week
0-7, where 0 or 7 is Sunday
Use case
Use in a Kubernetes CronJob schedule field for daily maintenance or batch processing.
FAQ
What does this cron expression mean?
Runs every day at 12:00 AM.
Can I use this in Linux crontab?
Yes. This is a standard Linux 5-field cron expression when used with a normal crontab command.
Does this work in GitHub Actions?
Usually yes for 5-field syntax, but GitHub Actions schedules run in UTC and may be delayed during high load.
How can I change the time?
Edit the minute and hour fields, or open the expression in the Cron Generator or Playground.
How can I test this expression?
Use the Cron Validator to check syntax and the Next Run Calculator to preview upcoming executions.