cron*/45 * * * *

Every 45 Minutes

“Every 45 minutes”

Runs every 45 minutes. Note: because 45 doesn't divide 60 evenly, runs occur at :00 and :45 each hour.

Every N Minutes32 runs/day

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

Try it live →

Field Breakdown

Field	Value	Meaning
minute	`*/45`	every 45th minute
hour	`*`	every hour
day	`*`	every day of month
month	`*`	every month
weekday	`*`	every day of week

*/45

minute

hour

day

month

weekday

Common Use Cases

✓Mid-frequency polling
✓Custom interval jobs

Code Examples

Bash / crontab

# Run your script on schedule: */45 * * * *
*/45 * * * * /path/to/your/script.sh

Node.js (node-cron)

import cron from 'node-cron';

cron.schedule('*/45 * * * *', () => {
  console.log('Running scheduled task');
});

Python (APScheduler)

from apscheduler.schedulers.blocking import BlockingScheduler

scheduler = BlockingScheduler()

@scheduler.scheduled_job('cron', minute='*/45')
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 45 Minutes

on:
  schedule:
    - cron: '*/45 * * * *'
  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: */45 * * * *"
          # 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 — Every N Minutes

Need to build your own cron expression from scratch?

Open the Cron Expression Builder →