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AWS EventBridge

AWS EventBridge Cron Expression Generator

EventBridge schedule rules use six fields: minute, hour, day-of-month, month, day-of-week, year. Times are in UTC. Enter the expression without the surrounding cron( ).

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What to know about AWS EventBridge cron

Common AWS EventBridge schedules

Ready-made expressions for the schedules people search for most. Each page explains the expression and shows the first run times.

ScheduleExpression
Every minute* * * * ? *
Every 5 minutes*/5 * * * ? *
Every 10 minutes*/10 * * * ? *
Every 15 minutes*/15 * * * ? *
Every 30 minutes*/30 * * * ? *
Every hour0 * * * ? *
Every 2 hours0 */2 * * ? *
Every 3 hours0 */3 * * ? *
Every 6 hours0 */6 * * ? *
Every 12 hours0 0,12 * * ? *
Twice a day at 9am and 9pm0 9,21 * * ? *
Every day at midnight0 0 * * ? *
Every day at 2:00 AM0 2 * * ? *
Every day at 9:00 AM0 9 * * ? *
Every day at 6:00 PM0 18 * * ? *
Every weekday at 9:00 AM0 9 ? * 2-6 *
Every weekday at 8:30 AM30 8 ? * 2-6 *
Hourly during business hours on weekdays0 9-17 ? * 2-6 *
Every 15 minutes during business hours on weekdays*/15 9-17 ? * 2-6 *
Every Saturday and Sunday at 10:00 AM0 10 ? * 1,7 *
Every Monday at 9:00 AM0 9 ? * 2 *
Every Friday at 5:00 PM0 17 ? * 6 *
Every Sunday at midnight0 0 ? * 1 *
On the 1st of every month at midnight0 0 1 * ? *
On the 15th of every month at midnight0 0 15 * ? *
On the last day of every month0 0 L * ? *
On the first Monday of every month at 9:00 AM0 9 ? * 2#1 *
On the last Friday of every month at noon0 12 ? * 6L *
On the first day of every quarter0 0 1 1,4,7,10 ? *
Once a year on January 1st0 0 1 1 ? *

Frequently asked questions

Why does EventBridge reject my cron expression?

Usually a missing year field, or * in both day fields. Use ? in exactly one of them.

Is the minimum rate one minute?

Yes. For simple intervals, a rate(5 minutes) expression may be easier than cron.

Moving a schedule between systems? Use the cron format converter, or read the cron error fixes.

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