How do I schedule a job job twice a day?

Use the cron expression 0 8,20 * * *. You can set this in crontab on Linux, or use a service like CronJobPro to schedule HTTP requests with this expression.

Daily Schedules

Cron Job Twice a Day – Expression & Examples

Using 8,20 in the hour field triggers at 08:00 and 20:00. Commas separate multiple specific values.

Cron Expression

0 8,20 * * *

Minute

(0-59)

8,20

Hour

(0-23)

Day of Month

(1-31)

Month

(1-12)

Day of Week

(0-6)

How It Works

Using 8,20 in the hour field triggers at 08:00 and 20:00. Commas separate multiple specific values.

Common Use Cases

Morning and evening reports
Twice-daily data sync
AM/PM monitoring checks

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Frequently Asked Questions

What does `0 8,20 * * *` mean in cron?

Using 8,20 in the hour field triggers at 08:00 and 20:00. Commas separate multiple specific values.

How do I use this cron expression?

On Linux/macOS, edit your crontab with crontab -e and add:
0 8,20 * * * /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.