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Convert Apache Airflow cron to Jenkins
Apache Airflow expressions look similar to Jenkins, but the differences matter. Paste yours below; the result is checked against the original run times.
What changes from Apache Airflow to Jenkins
- Jenkins has no
L,Wor#symbols. Schedules like "last day of the month" cannot be converted and are refused rather than silently changed. - Jenkins
His optional, but using it (for exampleH/15instead of*/15) spreads load across your jobs.
Worked examples
| Schedule | Apache Airflow | Jenkins |
|---|---|---|
| every minute | * * * * * | * * * * * |
| every 5 minutes | */5 * * * * | */5 * * * * |
| every 10 minutes | */10 * * * * | */10 * * * * |
| every 15 minutes | */15 * * * * | */15 * * * * |
| every 30 minutes | */30 * * * * | */30 * * * * |
| every hour | 0 * * * * | 0 * * * * |
| every 2 hours | 0 */2 * * * | 0 */2 * * * |
| every 3 hours | 0 */3 * * * | 0 */3 * * * |
What cannot be converted
These common Apache Airflow schedules have no equivalent in Jenkins. The converter refuses them instead of guessing.
- on the last day of every month:
0 0 L * *. This schedule cannot be expressed in Jenkins (H syntax): "L" is not a valid dom value. - on the first Monday of every month at 9:00 AM:
0 9 * * MON#1. This schedule cannot be expressed in Jenkins (H syntax): "MON#1" is not a valid dow value.
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.
minute (0-59), hour (0-23), day-of-month (1-31), month (1-12), day-of-week (0-7, 0 and 7 = Sunday).
Jenkins uses the controller's time zone. Put TZ=Asia/Kolkata on its own first line of the trigger to override it.
Go the other way
Convert Jenkins to Apache Airflow, or open the Apache Airflow builder or the Jenkins builder.
Frequently asked questions
How do I convert a Apache Airflow cron expression to Jenkins?
Paste it into the converter above with Apache Airflow as the source and Jenkins as the target. For example, * * * * * becomes * * * * *.
Is every Apache Airflow expression convertible to Jenkins?
No. Out of 30 common schedules, 2 cannot be expressed in Jenkins: on the last day of every month; on the first Monday of every month at 9:00 AM.
Does Jenkins 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.