Cron expression for Amazon Eventbridge

I’m trying to get cron expression to trigger an event at 7:45 UTC on only working days — Monday to Friday.

45 7 * * MON,TUE,WED,THU,FRI *
45 7 * * 1,2,3,4,5 *

Although the above expressions were supposed to work I am getting an Invalid CRON expression error raised on both and so how is the day of the week supposed to be to get it to work on only working days?

>Solution :

It should be:

45 7 ? * MON,TUE,WED,THU,FRI *

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