'On the Third Day' in the Bible

"Return; you must say to Hezekiah, the leader of my people, 'Thus says Yahweh the God of David your ancestor, "I have heard your prayer and I have seen your tears. Look, I [am about to] heal you. On the third day you shall go up [to] the temple of Yahweh.

Hezekiah said to Isaiah, "What is the sign that Yahweh will heal me that I shall go up on the third day [to] the temple of Yahweh?"