Cron: Every 30 minutes
Runs the job every half hour.
*/30 * * * *At minute 0 and 30 of every hour.
Field breakdown
| Minute | Hour | Day of month | Month | Day of week |
|---|---|---|---|---|
| */30 | * | * | * | * |
The five fields are, in order: minute (0–59), hour (0–23), day of month (1–31), month (1–12), and day of week (0–6, Sunday = 0).
Common use case
Half-hourly report updates, data imports, or status syncs.
Watch out for
Some older cron implementations don’t support */30 — use the explicit form 0,30 * * * * for maximum compatibility.
Other common cron expressions
Build and test your own cron schedule with a live preview.
Open the Cron Expression tool