How much notice do I need to give my employer when I plan to take unpaid Carer's Leave? As an employee, you would need to give double the amount of requested days' leave as notice - except for taking 1 day, which requires 3 days of notice. Half days are rounded up. 0.5 Days requires 3 Days' notice. 1 Day requires 3 Days' notice. 2 Days requires 4 Days' notice. 3 Days requires 6 Days' notice. 4 Days requires 8 Days' notice. 5 Days requires 10 Days' notice. Manage Cookie Preferences