Time source for cron automation execution

[Hubert Bedyk]

Hello,

i can't find information what is the time source for cron execution in automatation in Jira Cloud.

I have automation with cron expression 0 * 1-12 ? * 2-6 and it started at: 

04/08/23 02:18:53 pm
04/08/23 02:19:03 pm
04/08/23 02:19:51 pm

but should start at every minut between 1am and 12am hour from Monday to Friday. Why it started at 2pm?

When I've changed cron expression to 0 * 14 ? * 2-6 it didn't start at 02pm at all.

So now i'm super confused what is time source for cron automation. Hour format should be 24H according to Atlassian's documentation.

[Sayed Bares [ServiceRocket] · Accepted solution]

@Hubert Bedyk Cron expressions are scheduled based on UTC, My guess is your timezone is (UTC+14/UTC-10) so if you want to run it based on your own timezone then you will need to take that into account

[Hubert Bedyk]

"Cron expressions are scheduled based on UTC" That I missed.

Thanks

[Ste Wright · Accepted solution]

Hi @Hubert Bedyk 

Check your timezone - cron in Automation runs in UTC.

I don't believe you can set a timezone in cron via Automation at this point - see this feature request: AUTO-101 - but you could set your timing based on UTC time, for when 1am-12am is in your timezone.

Ste

[Hubert Bedyk]

I've missed the information that "cron in Automation runs in UTC."

Thank you

[Hubert Bedyk]

I've looked again at https://support.atlassian.com/jira-software-cloud/docs/manage-filters/ and there is no information about that. The same here: https://support.atlassian.com/cloud-automation/docs/jira-automation-triggers/ but it's clearly noticed in the box below cron expression setting in the system. 

My mistake.