How long does it take to die after the jugular vein is cut?

Since the blood flow of the IJV (internal jugular vein) is 700mL per minute when the head is lying flat, and at 70mL per minute when the head is at a right angle, and you need to lose approximately 40% of your blood to die, when the vein is cut it would take around 3 minutes to bleed out and die if the head is flat, and about 30 minutes to bleed out if the head is bent at a 90 degree angle. these numbers are further lengthened if a tourniquet or other blood loss device is applied.