The cron expression for every 15 minutes during business hours is */15 9-17 * * 1-5. Runs every 15 minutes from 9:00 AM to 5:45 PM, Monday through Friday — the 9-17 hour range ends before 6 PM. Preview the next runs in your timezone.
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Starts at minute 0 and repeats within each hour.
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About */15 9-17 * * 1-5
*/15 9-17 * * 1-5 — Runs every 15 minutes from 9:00 AM to 5:45 PM, Monday through Friday — the 9-17 hour range ends before 6 PM.
Cron reads the five fields as minute hour day month weekday. For this schedule that breaks down as:
| Field | Position | Matches |
|---|---|---|
*/15 | minute | 0, 15, 30, 45 |
9-17 | hour | 9–17 |
* | day of month | every day |
* | month | every month |
1-5 | day of week | Monday–Friday |
New to cron? Read the syntax reference or the FAQ.
Use it in crontab or GitHub Actions
The snippets below use UTC. The crontab timezone setting requires a compatible daemon such as Cronie. GitHub Actions defaults to UTC and accepts a timezone on each schedule. For other timezones, Kubernetes, EventBridge Scheduler, or Vercel, use the export menu in the calculator above.
crontab
# Every 15 minutes, between 09:00 AM and 05:59 PM, Monday through Friday # CRON_TZ requires a cron implementation that supports it, such as Cronie. CRON_TZ=UTC */15 9-17 * * 1-5 /path/to/command
GitHub Actions workflow
# Every 15 minutes, between 09:00 AM and 05:59 PM, Monday through Friday
on:
schedule:
- cron: '*/15 9-17 * * 1-5'
timezone: "UTC"