Interval Schedules
Cron Job Every 8 Hours – Expression & Examples
Triggers at hours 0, 8, and 16 — three times per day, roughly aligned with work shifts.
Cron Expression
0 */8 * * *
0
Minute
(0-59)
*/8
Hour
(0-23)
*
Day of Month
(1-31)
*
Month
(1-12)
*
Day of Week
(0-6)
How It Works
Triggers at hours 0, 8, and 16 — three times per day, roughly aligned with work shifts.
Common Use Cases
- Shift-based reporting
- Periodic data sync
- Compliance checks
Schedule This Cron Job Now
Create a free CronJobPro account and use 0 */8 * * * to schedule HTTP requests automatically — with monitoring, retries, and notifications built in.
Frequently Asked Questions
What does 0 */8 * * * mean in cron?
Triggers at hours 0, 8, and 16 — three times per day, roughly aligned with work shifts.
How do I use this cron expression?
On Linux/macOS, edit your crontab with crontab -e and add:0 */8 * * * /path/to/your/script.sh
Or use CronJobPro to schedule HTTP requests with this expression — no server required.
What timezone does cron use?
By default, cron uses the system timezone. CronJobPro lets you set a specific timezone per job, so your schedules are predictable regardless of server location.