Scorecard allows you to send your salespeople and managers weekly updates on how everyone is performing. To enable Scorecard Digest Emails, go to the Scorecard Settings tab. Then, click the box at the top of the page.
If you would like to adjust the day and the week they are sent, you will need to go to Setup --> Custom Settings --> Scorecard Settings.
There you will edit the settings, and you can choose the digest day of the week and digest hour of the day.
The days are associated with Salesforce days, and a week starts on Sunday. So Sunday = 1. Hours are based on the 24-hour clock.
Here is an example Scorecard Digest Email: