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Cron Expression: Every 30 minutes
Use */30 * * * * — Every 30 minutes.
Cron Expression: Every 30 minutes
RunsFields: minute */30 · hour * · day * · month * · weekday *
| # | Date | Time |
|---|---|---|
| 1 | Fri, Nov 13, 2026 | 15:00 |
| 2 | Fri, Nov 13, 2026 | 15:30 |
| 3 | Fri, Nov 13, 2026 | 16:00 |
| 4 | Fri, Nov 13, 2026 | 16:30 |
| 5 | Fri, Nov 13, 2026 | 17:00 |
| 6 | Fri, Nov 13, 2026 | 17:30 |
| 7 | Fri, Nov 13, 2026 | 18:00 |
| 8 | Fri, Nov 13, 2026 | 18:30 |
Standard 5-field cron (Linux crontab, Kubernetes CronJob, GitHub Actions — which runs in UTC). When both day-of-month and day-of-week are set, the job runs when EITHER matches.
Where to use it
- Linux crontab:
*/30 * * * * /path/to/script.sh - GitHub Actions:
schedule: - cron: '*/30 * * * *'(runs in UTC) - Kubernetes CronJob:
schedule: "*/30 * * * *"
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