Matthew 24:36

But about that day or hour not a single one knows -- not even the angels in heaven or the Son; not a single one but the Father alone.

Acts 1:7

He answered them, "It is not your business to learn times and dates which the Father has a right to fix,

Matthew 25:13

So you must keep on watching, for you do not know either the day or the hour.

Mark 13:32

But about that day or hour not a single one knows -- not even the angels in heaven, nor the Son; not a single one but the Father.

1 Thessalonians 5:2

for you yourselves know perfectly well that the day of the Lord is coming like a thief in the night.

Matthew 24:42

So keep on watching, for you do not know on what day your Lord is coming.

Matthew 24:44

So you, too, must continue to be ready, for at an hour you are not expecting Him the Son of Man will come.

2 Peter 3:10

The day of the Lord will come like a thief; on that day the heavens will pass away with a roar, the heavenly bodies will be destroyed by being burned up, and the earth with all its works will melt away.

Revelation 3:3

So remember what you have received and heard, and continue to obey it, and repent. If you do not wake up, I will come like a thief, and you will never know the hour when I come upon you.

Revelation 16:15

(See! I am coming like a thief! Blessed is he who stays awake and keeps his clothes ready, so that he may not go naked and people see his shame.)

Treasury of Scripture Knowledge

Summary

But of that day and hour knoweth no man, no, not the angels of heaven, but my Father only.

Bible References

General references

Matthew 24:42
So keep on watching, for you do not know on what day your Lord is coming.
Matthew 25:13
So you must keep on watching, for you do not know either the day or the hour.
Mark 13:32
But about that day or hour not a single one knows -- not even the angels in heaven, nor the Son; not a single one but the Father.
Acts 1:7
He answered them, "It is not your business to learn times and dates which the Father has a right to fix,
1 Thessalonians 5:2
for you yourselves know perfectly well that the day of the Lord is coming like a thief in the night.
2 Peter 3:10
The day of the Lord will come like a thief; on that day the heavens will pass away with a roar, the heavenly bodies will be destroyed by being burned up, and the earth with all its works will melt away.
Revelation 3:3
So remember what you have received and heard, and continue to obey it, and repent. If you do not wake up, I will come like a thief, and you will never know the hour when I come upon you.
Revelation 16:15
(See! I am coming like a thief! Blessed is he who stays awake and keeps his clothes ready, so that he may not go naked and people see his shame.)