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Convert AWS EventBridge cron to Spring
AWS EventBridge expressions look similar to Spring, but the differences matter. Paste yours below; the result is checked against the original run times.
What changes from AWS EventBridge to Spring
- Spring has a leading seconds field. The converter adds
0in front so the job fires at the start of the minute. - AWS EventBridge numbers weekdays 1-7 starting on Sunday. Spring starts on Sunday = 0, so every weekday number is reduced by one.
- Spring does not use
?, so it is replaced with*. - Spring has no year field. A specific year would be dropped, so the schedule would repeat every year; the converter warns you.
Worked examples
| Schedule | AWS EventBridge | Spring |
|---|---|---|
| every minute | * * * * ? * | 0 * * * * * |
| every 5 minutes | */5 * * * ? * | 0 */5 * * * * |
| every 10 minutes | */10 * * * ? * | 0 */10 * * * * |
| every 15 minutes | */15 * * * ? * | 0 */15 * * * * |
| every 30 minutes | */30 * * * ? * | 0 */30 * * * * |
| every hour | 0 * * * ? * | 0 0 * * * * |
| every 2 hours | 0 */2 * * ? * | 0 0 */2 * * * |
| every 3 hours | 0 */3 * * ? * | 0 0 */3 * * * |
Field layout and time zones
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.
second (0-59), minute (0-59), hour (0-23), day-of-month (1-31), month (1-12), day-of-week (0-7, 0 and 7 = Sunday).
Spring evaluates in the server time zone by default. Add zone = "UTC" (or any ZoneId) to @Scheduled to make it explicit.
Go the other way
Convert Spring to AWS EventBridge, or open the AWS EventBridge builder or the Spring builder.
Frequently asked questions
How do I convert a AWS EventBridge cron expression to Spring?
Paste it into the converter above with AWS EventBridge as the source and Spring as the target. For example, * * * * ? * becomes 0 * * * * *.
Is every AWS EventBridge expression convertible to Spring?
Yes for the common schedules we tested (30 of 30), though unusual expressions with special characters might need manual review.
Does Spring run in the same time zone as AWS EventBridge?
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.