Cron expression reference

Cron syntax in one line

┌ minute (0–59)
│ ┌ hour (0–23)
│ │ ┌ day of month (1–31)
│ │ │ ┌ month (1–12 or JAN–DEC)
│ │ │ │ ┌ day of week (0–7 or SUN–SAT, 0 and 7 are Sunday)
* * * * *

Every N minutes

• Every minute* * * * *
• Every 2 minutes*/2 * * * *
• Every 5 minutes*/5 * * * *
• Every 10 minutes*/10 * * * *
• Every 15 minutes*/15 * * * *
• Every 20 minutes*/20 * * * *
• Every 30 minutes*/30 * * * *
• Every 45 minutes*/45 * * * *
• Every 7 minutes*/7 * * * *

Every N hours

• Every hour0 * * * *
• Every 2 hours0 */2 * * *
• Every 3 hours0 */3 * * *
• Every 4 hours0 */4 * * *
• Every 6 hours0 */6 * * *
• Every 12 hours0 */12 * * *
• Every 5 hours0 */5 * * *
• Every hour at half past30 * * * *

Daily

• Every day at midnight0 0 * * *
• Every day at 1am0 1 * * *
• Every day at 2am0 2 * * *
• Every day at 6am0 6 * * *
• Every day at 8am0 8 * * *
• Every day at 9am0 9 * * *
• Every day at noon0 12 * * *
• Every day at 6pm0 18 * * *
• Twice a day0 0,12 * * *
• Every day at 8am and 8pm0 8,20 * * *

Weekly and weekdays

• Every weekday0 0 * * 1-5
• Every weekday at 9am0 9 * * 1-5
• Every weekend0 0 * * 0,6
• Every monday0 0 * * 1
• Every monday at 9am0 9 * * 1
• Every friday at 5pm0 17 * * 5
• Every sunday0 0 * * 0
• Every sunday at 3am0 3 * * 0

Business hours

• Every hour during business hours0 9-17 * * 1-5
• Every 15 minutes during business hours*/15 9-17 * * 1-5
• Every 30 minutes during business hours*/30 9-17 * * 1-5

Monthly and yearly

• Every month0 0 1 * *
• On the 1st and 15th of every month0 0 1,15 * *
• On the 15th of every month0 0 15 * *
• Every 2 months0 0 1 */2 *
• Every quarter0 0 1 1,4,7,10 *
• Every 6 months0 0 1 1,7 *
• Every year0 0 1 1 *
• On the 31st of the month0 0 31 * *