Mat 24:29 Immediately after the tribulation of those days shall the sun be darkened, and the moon shall not give her light, and the stars shall fall from heaven, and the powers of the heavens shall be shaken:
Mat 24:30 And then shall appear the sign of the Son of man in heaven: and then shall all the tribes of the earth mourn, and they shall see the Son of man coming in the clouds of heaven with power and great glory.
Mat 24:31 And he shall send his angels with a great sound of a trumpet, and they shall gather together his elect from the four winds, from one end of heaven to the other.
Mat 24:36 But of that day and hour knoweth no man, no, not the angels of heaven, but my Father only.
Mat 24:37 But as the days of Noe were, so shall also the coming of the Son of man be.
Mat 24:38 For as in the days that were before the flood they were eating and drinking, marrying and giving in marriage, until the day that Noe entered into the ark,
Mat 24:39 And knew not until the flood came, and took them all away; so shall also the coming of the Son of man be.
Within reading these scriptures I say, yes, it does matter when Christ returns so we are not taken as a thief in the night, not looking for His coming. But the important thing is that we be ready to be caught up to Him when He returns.
I use to believe in what all those pretrib teachers taught, but could never find it in Rev 4:1-2 they love to use as all it says is that John was caught up in the Spirit while he was a prisoner on the isle of Patmos for preaching the word in Asia to the seven churches. While he was in the Spirit, as he was still physically on the isle of Patmos, the angel Jesus sent to him started giving him revelations in many different visions as John was never taken up to heaven to receive them, but was only in the Spirit hearing the voice of this angel.
Rev 4:1 After this I looked, and, behold, a door was opened in heaven: and the first voice which I heard was as it were of a trumpet talking with me; which said, Come up hither, and I will shew thee things which must be hereafter.
Rev 4:2 And immediately I was in the spirit: and, behold, a throne was set in heaven, and one sat on the throne.