3, Twins do not have to be born on the same date. In fact, they can be born surprisingly far apart. The longest recorded gap between twin births is 85 days. How does this happen? The simplest explanation comes when one twin is born just before midnight and the other after. In cases where there is a longer gap, it’s often because one twin is born early due to complications, while the other is left in the womb to further develop. This is much safer for the second baby and can help improve survival rates.