Crontab generator for every 3 hours
Start from 0 */3 * * *, which runs every 3 hours. Change any field and the description and next runs update. Then copy the line, share the link, or read the full explainer.
0-59
0-23
1-31
1-12
0-6 (0 = Sunday)
Presets
0 */3 * * *
Every 3 hours at :00
| Field | Value | Meaning |
|---|---|---|
| minute | 0 | exactly 0 |
| hour | */3 | every 3 hours, starting at 0 |
| day of month | * | every day of month |
| month | * | every month |
| day of week | * | every day of week |
Next five runs, UTC
- 2026-09-18 00:00 UTC
- 2026-09-18 03:00 UTC
- 2026-09-18 06:00 UTC
- 2026-09-18 09:00 UTC
- 2026-09-18 12:00 UTC
About this schedule
Using "* */3 * * *" for every 3 hours. That runs every minute of every 3th hour. The minute field must be the fixed number 0.