AWS cron every Sunday and Wednesday

Question

How can I run a cron job at 2am UTC at every Sunday and Wednesday on AWS.

0 2 * * SUN,WED *

The time is fine, just the days seem to be the wrong format (getting Parameter ScheduleExpression is not valid via serverless). But all resources I can find do only state ranges of days, how to select single ones?

Answer 1

Your cron should look like this:

0 2 ? * SUN,WED *

Or:

0 2 ? * 1,4 *
    ^
    Day of month is wrong

Your issue is with the Day of month.

Check the result in EventBridge