Crontab generator for every 3 hours at :15
Start from 15 */3 * * *, which runs every 3 hours at :15. 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
15 */3 * * *
Every 3 hours at :15
| Field | Value | Meaning |
|---|---|---|
| minute | 15 | exactly 15 |
| 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 00:15 UTC
- 2026-09-18 03:15 UTC
- 2026-09-18 06:15 UTC
- 2026-09-18 09:15 UTC
- 2026-09-18 12:15 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 15.