Recent experiments involving delayed-choice entanglement swapping seem to suggest that particles can become entangled after they’ve already been detected. This astonishing result is taken by some to undermine realism about entanglement. I present an alternative explanation of these experiments that invokes entanglement relations between particles at different times. I argue that such an explanation—radical though it may be—isn't incoherent and doesn't invite paradox. I compare this approach to a more deflationary realist strategy defended by Matthias Egg, which I argue faces problems in light of relativity. The upshot is that we should take seriously the possibility of entanglement across time and seek to develop a framework for quantum theory which allows for it.