The Sagittarius-Capricorn cusp, covering birthdays from December 19th to 25th, combines the adventurous, optimistic qualities of Sagittarius with the ambitious, disciplined traits of Capricorn. Individuals born under this cusp exhibit strengths such as tenacity, loyalty, and open-mindedness, but may struggle with weaknesses like impatience and moodiness. This unique blend of fiery and earthy energies positions them well for impactful careers, often characterized by strong leadership and a dedication to their goals.