When will the lemon bars be ready?

Lemon bars typically need about 25 to 30 minutes to bake at 350°F (175°C). After baking, allow them to cool at room temperature for at least 1 hour before slicing. For the best flavor and texture, it's ideal to refrigerate them for an additional 1 to 2 hours before serving. So, you can expect them to be ready in about 2 to 3 hours total.