Tools › Cron examples › every 15 minutes
Cron expression for every 15 minutes
The cron expression for every 15 minutes is:
What it does
Runs four times an hour, at :00, :15, :30 and :45.
Field by field
| Field | Value | Meaning |
|---|---|---|
| Minute | */15 | step */15 |
| Hour | * | every value |
| Day of month | * | every value |
| Month | * | every value |
| Day of week | * | every value |
Typical uses
Batch imports, email digests, or refreshing dashboards.
Watch out for
Pair it with a lock file if one run might still be going when the next starts.
Add it to your crontab
crontab -e, then add:
*/15 * * * * /path/to/command >> /var/log/myjob.log 2>&1
Related schedules
every minuteevery 5 minutesevery 10 minutesevery 30 minutesevery hourevery 2 hoursevery day at midnightevery day at 3amevery weekday at 9amevery 15 minutes during business hoursevery Mondayevery Sunday at midnighton weekendson the first day of every monthon the last day of the monthevery quartertwice a day