Cron Reference

Nightly Cron Job

Cron expression 0 0 * * * means At 12:00 AM.

Cron expression for a nightly job that runs every night at midnight: 0 0 * * *. "Nightly" is the most common search term for tasks that should run once each night.

Cron Expression

0 0 * * *
0Minute
0Hour
*Day
*Month
*Weekday

Common use cases

  • Nightly database maintenance and cleanup
  • Running overnight batch processing pipelines
  • Sending nightly summary reports to stakeholders
  • Archiving daily data before the new business day begins

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

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Platform usage examples

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

# Add this line to run nightly cron job
0 0 * * * /usr/bin/php /var/www/html/script.php

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

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

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

Related developer tools

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Frequently asked questions

What is the cron expression for nightly cron job?

The cron expression is 0 0 * * *. Cron expression for a nightly job that runs every night at midnight: 0 0 * * *. "Nightly" is the most common search term for tasks that should run once each night.

How do I schedule a cron job to run nightly cron job in Linux?

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

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

Cron expression for a nightly job that runs every night at midnight: 0 0 * * *. "Nightly" is the most common search term for tasks that should run once each night.

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

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

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