cron -h
Cron expression examples
Common crontab schedules and what they actually mean. Pick one to open it in the interpreter.
| Expression | Means |
|---|---|
* * * * * |
Every minute |
*/5 * * * * |
Every 5 minutes |
*/10 * * * * |
Every 10 minutes |
*/15 * * * * |
Every 15 minutes |
*/20 * * * * |
Every 20 minutes |
*/30 * * * * |
Every 30 minutes |
0 * * * * |
Every hour, on the hour |
30 * * * * |
Every hour at :30 |
0 */2 * * * |
Every 2 hours |
0 */3 * * * |
Every 3 hours |
0 */4 * * * |
Every 4 hours |
0 */6 * * * |
Every 6 hours |
0 */8 * * * |
Every 8 hours |
0 */12 * * * |
Every 12 hours |
0 9-17 * * * |
Every hour from 9:00 AM to 5:00 PM |
30 9-17 * * MON-FRI |
Every hour from 9:30 AM to 5:30 PM, on weekdays |
*/15 */2 * * * |
Every 15 minutes, on even-numbered hours |
0 0 * * * |
Every day at 12:00 AM |
0 6 * * * |
Every day at 6:00 AM |
0 9 * * * |
Every day at 9:00 AM |
0 12 * * * |
Every day at 12:00 PM |
0 18 * * * |
Every day at 6:00 PM |
30 23 * * * |
Every day at 11:30 PM |
0 0 * * 0 |
Every Sunday at 12:00 AM |
0 3 * * 0 |
Every Sunday at 3:00 AM |
0 9 * * MON-FRI |
Every weekday at 9:00 AM |
30 8 * * SAT,SUN |
Every weekend at 8:30 AM |
0 22 * * 1-5 |
Every weekday at 10:00 PM |
0 3 * * 1,3,5 |
Every Monday, Wednesday, and Friday at 3:00 AM |
0 0 1 * * |
At 12:00 AM, on day 1 of the month |
0 0 15 * * |
At 12:00 AM, on day 15 of the month |
15 14 1 * * |
At 02:15 PM, on day 1 of the month |
0 0 1 1 * |
At 12:00 AM, on day 1 of the month, only in January |
5 0 * 8 * |
At 12:05 AM, only in August |
*/7 * * * * |
Every 7 minutes from :00 to :56 of each hour, then again on the hour |
0 */5 * * * |
Every 5 hours from 12:00 AM to 8:00 PM each day, then again the next day |
5-59/15 * * * * |
Every 15 minutes, starting at :05 |
@reboot |
Once at system startup |
@hourly |
Every hour, on the hour |
@daily |
Every day at 12:00 AM |
@weekly |
Every Sunday at 12:00 AM |
@monthly |
At 12:00 AM, on day 1 of the month |
@yearly |
At 12:00 AM, on day 1 of the month, only in January |