The Lord Jesus Christ appeared to His Disciples in His glorified body for the first time on 5th of April 33 AD [Day 16 Month 1 Year 33] 

The third time He appeared to the Disciples was 13 Days later on the 17th of April 33 AD [Day 28 Month 1 Year 33 AD]. 

From this Date the Lord spent 40 Days teaching them about the Kingdom of God.

"After his death He [that is, the Lord] showed himself to them and gave many convincing proofs that he was alive. During a period of forty days they saw him, and he spoke with them about the Kingdom of God." [Acts 1:3]

On the 40th Day, on the 26th of May 33 AD [Day 8 Month 3 Year 33] the Lord ascended up into heaven to prepare for the outpouring of His Holy Spirit on Pentecost, which fell on the 16th of July 33 AD [Day 30 Month 4 Year 33]!

"...I tell you the truth, it is to your advantage that I go away; for if I don’t go away, the comforting Counselor [the Holy Spirit] will not come to you. However, if I do go, I will send him to you." [John 16:7]

I believe a similar sequence of events will happen again, this Year, in 2015! 

After the Lord comes for His saints, hopefully on First-fruits [6th of April 2015], a number of glorified saints will return to earth 13 Days later, on the 18th of April 2015 [Day 28 Month 1 Year 6000], to teach many Christians for 40 Days about the kingdom of God!

This is to give these Christians convincing proof that their loved ones are indeed with the Lord. And that they will also receive their glorified bodies, at the end of the Great Tribulation, if they're prepared to put their faith in the Lord, and receive from Him the power of the Holy Spirit to practice righteousness, until their death at the hands of the Antichrist!

"...I saw the souls of those who had been beheaded for testifying about Yeshua and proclaiming the Word of God, also those who had not worshipped the beast or its image and had not received the mark on their foreheads and on their hands. They came to life and ruled with the Messiah for a thousand years." [Rev.20:4]

On the 27th of May 2015 [Day 8 Month 3 Year 6000] these glorified saints will then return to heaven to join their families, and the rest of the heavenly host, where they will serve God as spiritual conduits for the outpouring of the Holy Spirit on Pentecost. 

Pentecost correctly falls on the 17th of July 2015 [Day 29 Month 4 Year 6000]

[link to creationcalendar.com] 

The 42 Months of the beheading of Christians, by the Antichrist, will begin anytime from the 7th of February 2019 [Day 1 Month 12 Year 6004]

By February 2019 millions of Christians around the World would have grown spiritually, over a period of 1260 Days from the Day of Pentecost, in wisdom and power through the diligent study of Word and hours of prayers.

They will therefore be fully prepared to give up their lives for their faith in the Lord!