Where Thirty Minutes Came From
The number has a documented history and it is worth knowing, because it explains why the number behaves so oddly in litigation.
Obstetric standards published in 1988 replaced an earlier fifteen-minute figure with thirty. The change rested on a survey from the previous year showing that almost every hospital reported being able to begin a cesarean within half an hour of the decision. The figure described institutional capability. It answered the question can a hospital do this if it has to, not the question how quickly must this baby be delivered.
Over the following decades the number detached from its origin. It appears in policies, in training, in expert reports, and in a great many law firm pages, restated as a clinical deadline. Commentary in the obstetric literature has been calling this out for years, under titles asking whether the thirty-minute rule is fact or fiction.
A family who has read that a hospital "had thirty minutes and took fifty" is working from a real number, honestly reported, that does not mean what the sentence implies.

