The Lord's first appearance: Day 16 Month 1.

The Lord's second appearance: Day 23 Month 1.

The Lord's third appearance: Day 6 Month 2.

He stayed with His disciples for 40 days and left for His Father's house on Day 15 Month 3.

Let not your heart be troubled: ye believe in God, believe also in me. In my Father's house are many mansions: if it were not so, I would have told you. I go [on Day 15 Month 3, on Shavout] to prepare a place for you. And if I go [on Day 15 Month 3, on Shavout] and prepare a place for you, I will come again [on Day 15 Month 3, on Shavout], and receive you unto myself; that where I am, there ye may be also." [John 14:1-3][words in bracket are mine]

The First Day: The disciples started the day with the Lord Jesus Christ in person, He then returned to His Father's house before the end of the day on Day 15 Month 3, on Shavout

The Last Day: We will start the day without the Lord Jesus Christ in person. He will then return from His Father's house before the end of the day on Day 15 Month 3, on Shavout, to take us to live with Him in His Father's house forever!