Cron Expression: */15 * * * *

Every 15 minutes (00, 15, 30, 45) of every hour.

Field Breakdown

FieldValue
Minute*/15
Hour*
Day of Month*
Month*
Day of Week*

Common Use Case

Sync jobs, log rotation triggers, heartbeat reports.

Sample Fire Times (UTC)

WhenUnix Timestamp
2026-05-05 16:001777996800
2026-05-05 16:151777997700
2026-05-05 16:301777998600
2026-05-05 16:451777999500
2026-05-05 17:001778000400

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

Equivalents in Popular Schedulers

crontab (Linux/macOS)

*/15 * * * * /path/to/your/script.sh

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

on:
  schedule:
    - cron: '*/15 * * * *'

AWS EventBridge (cron format)

cron(*/15 * * * *)    # Note: AWS uses 6 fields with year

Kubernetes CronJob

spec:
  schedule: "*/15 * * * *"

Other Common Cron Expressions

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