Cron Expression: `0 0 28-31 * *`

Approximate end-of-month - fires on days 28-31 of every month. Most schedulers don't have a true 'last day' wildcard; you often pair this with a script-side check.

Field Breakdown

Field	Value
Minute	0
Hour	0
Day of Month	28-31
Month	*
Day of Week	*

Common Use Case

Monthly closing, end-of-month reports.

Equivalents in Popular Schedulers

crontab (Linux/macOS)

0 0 28-31 * * /path/to/your/script.sh

GitHub Actions (.github/workflows/*.yml)

on:
  schedule:
    - cron: '0 0 28-31 * *'

AWS EventBridge (cron format)

cron(0 0 28-31 * *)    # Note: AWS uses 6 fields with year

Kubernetes CronJob

spec:
  schedule: "0 0 28-31 * *"

Other Common Cron Expressions

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Cron Expression: 0 0 28-31 * *