But of that day and hour knoweth no [man], no, not the angels of heaven,
but my Father only. But as the days of Noe [were], so shall also the
coming of the Son of man be. 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, And knew not until the
flood came, and took them all away; so shall also the coming of the Son
of man be. Matthew 24:36-39

Let me first say that this passage can be interpreted into two different
meanings. Many Christians believe that it should be read from a present
day stance meaning that no [man] will ever know the day and hour. Some
believe that we should read this passage from a past point of view. This
would mean that no [man] knew the day and hour at the time this was
written. Which interpretation is correct? If we believe that no [man]
knew at the time the passage was written then maybe at some point it
would be possible to know the day and hour. But is this really the case?

Remember therefore how thou hast received and heard, and hold fast, and
repent. If therefore thou shalt not watch, I will come on thee as a
thief, and thou shalt not know what hour I will come upon thee.
Revelation 3:3

Here we can find Jesus Christ telling the church in Sardis that they are
supposed to be watching for his return. If they fail to watch for his
return then Jesus would come unto them like a thief. This means that
Jesus would return for the church without them being aware. My guess is
that those who were unaware would either be left behind or surprisingly
awakened by the sound of the archangel. It's safe to say that we should
be eagerly watching for the day and hour of the Lords visitation. Our
lamps must always be full and ready for the time of our departure. Just
like in the days of Noah! Him and his family were all aware that the
flood was about to happen (even seven days before). Is Revelation 3:3
commanding us to be aware of the day and hour that Jesus will return for
his church?

Or is the Lord telling us that the great tribulation will be our seven
year warning system?

http://www.prophecytalk.com/index.php?topic=651.0

Brandon