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Convert Apache Airflow cron to Spring
Apache Airflow expressions look similar to Spring, but the differences matter. Paste yours below; the result is checked against the original run times.
What changes from Apache Airflow to Spring
- Spring has a leading seconds field. The converter adds
0in front so the job fires at the start of the minute. - Apache Airflow runs when day-of-month or day-of-week matches, but Spring requires both. If you set both fields, the converter warns you.
Worked examples
| Schedule | Apache Airflow | 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 (0-7, 0 and 7 = Sunday).
Airflow defaults to UTC. On a time-zone-aware DAG a cron schedule follows wall-clock time, so a daily 00:00 US/Eastern run moves between 04:00 and 05:00 UTC across daylight saving changes.
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 Apache Airflow, or open the Apache Airflow builder or the Spring builder.
Frequently asked questions
How do I convert a Apache Airflow cron expression to Spring?
Paste it into the converter above with Apache Airflow as the source and Spring as the target. For example, * * * * * becomes 0 * * * * *.
Is every Apache Airflow 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 Apache Airflow?
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.