Cron Expression: * * * * *

Every minute, every hour, every day, every month, every day of the week.

Field Breakdown

FieldValue
Minute*
Hour*
Day of Month*
Month*
Day of Week*

Common Use Case

Health checks, polling external APIs (be careful - this is 1,440 runs per day).

Sample Fire Times (UTC)

WhenUnix Timestamp
2026-09-16 23:001789599600
2026-09-16 23:011789599660
2026-09-16 23:021789599720
2026-09-16 23:031789599780
2026-09-16 23:041789599840

Sample times computed at build; your scheduler will fire on its own clock.

Equivalents in Popular Schedulers

crontab (Linux/macOS)

* * * * * /path/to/your/script.sh

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

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

AWS EventBridge (cron format)

cron(* * * * *)    # Note: AWS uses 6 fields with year

Kubernetes CronJob

spec:
  schedule: "* * * * *"

Other Common Cron Expressions

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