I'll walk you through how, @Zbates.
Let's go to your account and settings to see it. Here's how.
- Go to Gear.
- Choose Account and Settings.
- Select the Advanced tab. Then, scroll towards the Time tracking section.
- Change the First day of work week drop-down.
- Click Save and then Done. See the attached screenshot below.

With the above steps, you're able to get past the QuickBooks Time prompt and correct your schedule.
In case you need help with other tasks in QuickBooks, browse this link to go to the page: Browse all articles for your product.
Keep me posted if you still have questions or concerns with timesheets or your account. I'm here to assist you. Take care and have a nice day ahead.