Be certain to consult OCR's Billing Policies & Procedures to learn more about the approval required to bill more than 12 hours in any single day.
CARES does not allow any single activity to last longer than 12 hours. If you ever need to enter a single activity for more than 12 hours (e.g. occasional travel time), enter two separate activities of the same type to total the duration you need.
Invoices are automatically flagged with red clock icons to help you identify 12-hour days. By default, red icons show you days at or over 12 hours, while yellow icons show days at or over 10 hours. These flags are only to assist in your review; they do not mean OCR will necessarily reject an invoice. Adjust these thresholds temporarily to other numbers of hours while looking at invoices by clicking the small flag icon to the right of the buttons along the top: