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Convert Jenkins cron to Google Cloud Scheduler
Jenkins expressions look similar to Google Cloud Scheduler, but the differences matter. Paste yours below; the result is checked against the original run times.
What changes from Jenkins to Google Cloud Scheduler
- Jenkins
Hvalues pick a per-job offset, which no other system has. The converter replaces them with the start of the range.
Worked examples
| Schedule | Jenkins | Google Cloud Scheduler |
|---|---|---|
| every minute | * * * * * | * * * * * |
| every weekday at 8:30 AM | 30 8 * * 1-5 | 30 8 * * 1-5 |
Conversions that come with a warning
- every 5 minutes:
H/5 * * * *→*/5 * * * *. Jenkins H values have no equivalent elsewhere; they were replaced by their range start. - every 10 minutes:
H/10 * * * *→*/10 * * * *. Jenkins H values have no equivalent elsewhere; they were replaced by their range start. - every 15 minutes:
H/15 * * * *→*/15 * * * *. Jenkins H values have no equivalent elsewhere; they were replaced by their range start. - every 30 minutes:
H/30 * * * *→*/30 * * * *. Jenkins H values have no equivalent elsewhere; they were replaced by their range start.
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).
Jenkins uses the controller's time zone. Put TZ=Asia/Kolkata on its own first line of the trigger to override it.
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.
Go the other way
Convert Google Cloud Scheduler to Jenkins, or open the Jenkins builder or the Google Cloud Scheduler builder.
Frequently asked questions
How do I convert a Jenkins cron expression to Google Cloud Scheduler?
Paste it into the converter above with Jenkins as the source and Google Cloud Scheduler as the target. For example, * * * * * becomes * * * * *.
Is every Jenkins expression convertible to Google Cloud Scheduler?
Yes for the common schedules we tested (27 of 27), though unusual expressions with special characters might need manual review.
Does Google Cloud Scheduler run in the same time zone as Jenkins?
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.