cron*/30 9-17 * * 1-5

Every 30 Minutes During Business Hours

“Every 30 minutes, hour 9 through 17, on Monday through Friday”

Runs every 30 minutes between 9 AM and 5 PM, Monday through Friday.

Weekdays / Business Hours17 on weekdays runs/day

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

Try it live →

Field Breakdown

Field	Value	Meaning
minute	`*/30`	every 30th minute
hour	`9-17`	hour 9 through 17
day	`*`	every day of month
month	`*`	every month
weekday	`1-5`	Monday through Friday

*/30

minute

9-17

hour

day

month

1-5

weekday

Common Use Cases

✓Frequent business-hours checks
✓Customer queue monitoring
✓SLA compliance polling

Code Examples

Bash / crontab

# Run your script on schedule: */30 9-17 * * 1-5
*/30 9-17 * * 1-5 /path/to/your/script.sh

Node.js (node-cron)

import cron from 'node-cron';

cron.schedule('*/30 9-17 * * 1-5', () => {
  console.log('Running scheduled task');
});

Python (APScheduler)

from apscheduler.schedulers.blocking import BlockingScheduler

scheduler = BlockingScheduler()

@scheduler.scheduled_job('cron', minute='*/30', hour='9-17', day_of_week='1-5')
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: Every 30 Minutes During Business Hours

on:
  schedule:
    - cron: '*/30 9-17 * * 1-5'
  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: */30 9-17 * * 1-5"
          # 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 — Weekdays / Business Hours

0 0 * * 1-5

Every Weekday at Midnight

0 9 * * 1-5

Every Weekday at 9:00 AM

0 12 * * 1-5

Every Weekday at Noon

0 17 * * 1-5

Every Weekday at 5:00 PM

0 9-17 * * 1-5

Every Hour During Business Hours

Need to build your own cron expression from scratch?

Open the Cron Expression Builder →