It was the day of Preparation, and the next day was a High Sabbath. In order that the bodies would not remain on the cross during the Sabbath, the Jews asked Pilate to have the legs broken and the bodies removed.
Textus Receptus (TR) - John 19:31 >Οἱ οὖν Ἰουδαῖοι, ἵνα μὴ μείνῃ ἐπὶ τοῦ σταυροῦ τὰ σώματα ἐν τῷ σαββάτῳ, ἐπεὶ Παρασκευὴ ἦν — ἦν γὰρ μεγάλη ἡ ἡμέρα ἐκείνου τοῦ σαββάτου — ἠρώτησαν τὸν Πιλάτον ἵνα κατεαγῶσιν αὐτῶν τὰ σκέλη, καὶ ἀρθῶσιν.