You can use advanced overtime settings to accomplish this within TSheets. This would apply a rate multiplier or fixed rate to any time worked between a specific shift's start and stop time on one or more days, and transfer this rate to your QuickBooks once mapped properly. Here's how:
Go to Company Settings > Payroll & Overtime > Overtime.
At the bottom of the window, select Use Pay Rate Engine.
Select Add Setting, and enter a name.
Assign team members to the setting:
To assign it to all team members, select DEFAULT SETTING.
To assign it to individual groups and/or team members: Select No team members assigned, make your selection(s), and select OK.
Select Add. The Pay Rate Engine window displays.
Select the setting name that you just created, then Add Rule.
Enter a name, and select a Time of Day.
Enter the appropriate settings for the rule selected.
Choose whether the rule is a Rate multiplier (e.g., base pay x 1.5 /hr) or a Fixed rate (e.g., base pay + $2 /hr)