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Convert Google Cloud Scheduler cron to Apache Airflow
Google Cloud Scheduler expressions look similar to Apache Airflow, but the differences matter. Paste yours below; the result is checked against the original run times.
What changes from Google Cloud Scheduler to Apache Airflow
- Google Cloud Scheduler and Apache Airflow use the same five-field layout and weekday numbering, so most expressions convert unchanged.
Worked examples
| Schedule | Google Cloud Scheduler | Apache Airflow |
|---|---|---|
| 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 * * * |
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).
Cloud Scheduler takes any tz database zone (default UTC) and runs on wall-clock time, so daylight saving can make jobs run or not run unexpectedly. Google recommends UTC to avoid that.
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.
Go the other way
Convert Apache Airflow to Google Cloud Scheduler, or open the Google Cloud Scheduler builder or the Apache Airflow builder.
Frequently asked questions
How do I convert a Google Cloud Scheduler cron expression to Apache Airflow?
Paste it into the converter above with Google Cloud Scheduler as the source and Apache Airflow as the target. For example, * * * * * becomes * * * * *.
Is every Google Cloud Scheduler expression convertible to Apache Airflow?
Yes for the common schedules we tested (27 of 27), though unusual expressions with special characters might need manual review.
Does Apache Airflow run in the same time zone as Google Cloud Scheduler?
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.