CODEWITHSUNDEEP
amazon-web-servicescron
supersize
supersize

Reputation: 14773

AWS cron every Sunday and Wednesday

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?

Upvotes: 2

Views: 3275

Answers (2)

yaach
yaach

Reputation: 462

From AWS documentation:

Limitations

You can't specify the Day-of-month and Day-of-week fields in the same cron expression. If you specify a value or a * (asterisk) in one of the fields, you must use a ? (question mark) in the other.

Cron expressions that lead to rates faster than 1 minute are not supported.

The correct way should be:

 0 2 ? * SUN,WED *

Upvotes: 1

Youcef LAIDANI
Youcef LAIDANI

Reputation: 59960

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

EventBridge

Upvotes: 4

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