cron0 6 1 * *

SSL Certificate Check — Monthly on the 1st

“At 06:00, on day 1 of the month”

Checks SSL certificate expiry and validity on the 1st of every month at 6:00 AM. A monthly TLS certificate monitoring cron to alert before expiry, validate cert chains, and audit HTTPS health.

Monthly1 per month runs/day

Want to customize this schedule or validate your own cron expression?

Try it live →

Field Breakdown

Field	Value	Meaning
minute	`0`	0
hour	`6`	6
day	`1`	1
month	`*`	every month
weekday	`*`	every day of week

minute

hour

day

month

weekday

Common Use Cases

✓Monthly SSL expiry check
✓TLS certificate validation
✓HTTPS health audit monthly

Code Examples

Bash / crontab

# Run your script on schedule: 0 6 1 * *
0 6 1 * * /path/to/your/script.sh

Node.js (node-cron)

import cron from 'node-cron';

cron.schedule('0 6 1 * *', () => {
  console.log('Running scheduled task');
});

Python (APScheduler)

from apscheduler.schedulers.blocking import BlockingScheduler

scheduler = BlockingScheduler()

@scheduler.scheduled_job('cron', minute='0', hour='6', day='1')
def my_job():
    print('Running scheduled task')

scheduler.start()

GitHub Actions Workflow

Generate a ready-to-use .github/workflows/schedule.yml file. Customize the name and download directly.

GitHub Actions

Workflow Name

Job ID

# .github/workflows/schedule.yml
name: SSL Certificate Check — Monthly on the 1st

on:
  schedule:
    - cron: '0 6 1 * *'
  workflow_dispatch: # allow manual trigger

jobs:
  run:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Run scheduled task
        run: |
          echo "Running on schedule: 0 6 1 * *"
          # Add your commands here

Save as .github/workflows/schedule.yml in your repository root

Cron Syntax Quick Reference

Field	Allowed Values	Special Chars
minute	0–59	* , - /
hour	0–23	* , - /
day of month	1–31	* , - /
month	1–12 or JAN–DEC	* , - /
day of week	0–7 or SUN–SAT	* , - /

Special characters: *= any value ,= list -= range / = step

Related Patterns — Monthly

0 0 1 * *

First Day of Every Month at Midnight

0 0 2 * *

2nd Day of Every Month at Midnight

0 0 15 * *

15th of Every Month at Midnight

0 0 28 * *

28th of Every Month at Midnight

0 0 1,15 * *

Twice Monthly (1st and 15th)

Need to build your own cron expression from scratch?

Open the Cron Expression Builder →