Cron Reference

Cron Every 2 Hours

Cron expression 0 */2 * * * means At minute 0, every 2 hours.

Cron expression to run a job every 2 hours: 0 */2 * * *. Runs at midnight, 2 AM, 4 AM, and so on — 12 times per day.

Cron Expression

0 */2 * * *
0Minute
*/2Hour
*Day
*Month
*Weekday

Common use cases

  • Sending digest emails twice as often as daily
  • Periodic cache invalidation
  • Batch processing jobs with moderate data volumes

Want to customize this schedule?

Open it in the visual builder to tweak the expression interactively.

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Need to monitor this cron job?

Cronhub tracks your scheduled jobs and alerts you if they fail or run late.

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Platform usage examples

Linux / Unix — crontab
# Edit your crontab
crontab -e

# Add this line to run every 2 hours
0 */2 * * * /usr/bin/php /var/www/html/script.php

# Or run a shell script
0 */2 * * * /home/user/scripts/job.sh >> /var/log/job.log 2>&1
GitHub Actions
# .github/workflows/scheduled.yml
name: Scheduled Job

on:
  schedule:
    - cron: '0 */2 * * *'

jobs:
  run:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Run job
        run: echo "Running every 2 hours"
Kubernetes CronJob
apiVersion: batch/v1
kind: CronJob
metadata:
  name: my-scheduled-job
spec:
  schedule: "0 */2 * * *"
  jobTemplate:
    spec:
      template:
        spec:
          containers:
          - name: job
            image: my-image:latest
          restartPolicy: OnFailure

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Frequently asked questions

What is the cron expression for every 2 hours?

The cron expression is 0 */2 * * *. Cron expression to run a job every 2 hours: 0 */2 * * *. Runs at midnight, 2 AM, 4 AM, and so on — 12 times per day.

How do I schedule a cron job to run every 2 hours in Linux?

Open your crontab with "crontab -e" and add a new line: 0 */2 * * * /path/to/your/script.sh — this schedules your script to run every 2 hours. Save and exit; the cron daemon picks up the change immediately.

What does the cron expression "0 */2 * * *" mean?

Cron expression to run a job every 2 hours: 0 */2 * * *. Runs at midnight, 2 AM, 4 AM, and so on — 12 times per day.

Can I use "0 */2 * * *" in GitHub Actions?

Yes. In your workflow YAML, set the schedule trigger: on: schedule: - cron: '0 */2 * * *'. GitHub Actions uses standard 5-field Unix cron syntax, so this expression works as-is.

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