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Convert Quartz cron to AWS EventBridge
Quartz expressions look similar to AWS EventBridge, but the differences matter. Paste yours below; the result is checked against the original run times.
What changes from Quartz to AWS EventBridge
- AWS EventBridge has no seconds field, so a schedule that fires on specific seconds cannot be converted exactly. The seconds value is dropped and flagged.
Worked examples
| Schedule | Quartz | AWS EventBridge |
|---|---|---|
| every minute | 0 * * * * ? | * * * * ? * |
| every 5 minutes | 0 */5 * * * ? | */5 * * * ? * |
| every 10 minutes | 0 */10 * * * ? | */10 * * * ? * |
| every 15 minutes | 0 */15 * * * ? | */15 * * * ? * |
| every 30 minutes | 0 */30 * * * ? | */30 * * * ? * |
| every hour | 0 0 * * * ? | 0 * * * ? * |
| every 2 hours | 0 0 */2 * * ? | 0 */2 * * ? * |
| every 3 hours | 0 0 */3 * * ? | 0 */3 * * ? * |
Conversions that come with a warning
- every 10 seconds:
0/10 * * * * ?→* * * * ? *. AWS EventBridge has no seconds field; the seconds value "0/10" was dropped. - every 30 seconds:
0/30 * * * * ?→* * * * ? *. AWS EventBridge has no seconds field; the seconds value "0/30" was dropped.
Field layout and time zones
second (0-59), minute (0-59), hour (0-23), day-of-month (1-31), month (1-12), day-of-week (1-7, 1 = Sunday), year (1970-2199, optional).
Quartz uses the JVM default time zone unless you set one: CronScheduleBuilder.cronSchedule(expr).inTimeZone(TimeZone.getTimeZone("UTC")).
minute (0-59), hour (0-23), day-of-month (1-31), month (1-12), day-of-week (1-7, 1 = Sunday), year (1970-2199, required).
EventBridge rules always run in UTC. If you want a local time zone with DST support, use EventBridge Scheduler instead.
Go the other way
Convert AWS EventBridge to Quartz, or open the Quartz builder or the AWS EventBridge builder.
Frequently asked questions
How do I convert a Quartz cron expression to AWS EventBridge?
Paste it into the converter above with Quartz as the source and AWS EventBridge as the target. For example, 0 * * * * ? becomes * * * * ? *.
Is every Quartz expression convertible to AWS EventBridge?
Yes for the common schedules we tested (32 of 32), though unusual expressions with special characters might need manual review.
Does AWS EventBridge run in the same time zone as Quartz?
Not necessarily. Conversion changes the syntax, not the time zone. Check where each system evaluates the schedule before you rely on the same clock times.