Cron expression for every 3 hours
The cron expression to run a job every 3 hours is 0 */3 * * *. Preview upcoming executions in any timezone and copy it straight into your scheduler.
0minute*/3hour*day*month*weekdayIn Plain English
What your cron expression actually means.
On the hour, every 3 hours, every day
Upcoming Executions
Preview the next 50 times this schedule will trigger.
About 0 */3 * * *
0 */3 * * * fires at minute 0 of every 3 hours, starting at midnight. Since 3 divides 24 evenly, every gap in the day is the same length.
Cron reads the five fields as minute hour day month weekday. For this schedule that breaks down as:
0— minute*/3— hour*— day of month (every value)*— month (every value)*— day of week (every value)