Matthew 24:36

But of that day and hour no one knows, not even the angels of the heavens, but my Father alone.

Acts 1:7

And he said to them, It is not yours to know times or seasons, which the Father has placed in his own authority;

Matthew 25:13

Watch therefore, for ye know not the day nor the hour.

Mark 13:32

But of that day or of that hour no one knows, neither the angels who are in heaven, nor the Son, but the Father.

1 Thessalonians 5:2

for ye know perfectly well yourselves, that the day of the Lord so comes as a thief by night.

Zechariah 14:7

And it shall be one day which is known to Jehovah, not day, and not night; and it shall come to pass, at eventide it shall be light.

Matthew 24:42

Watch therefore, for ye know not in what hour your Lord comes.

Matthew 24:44

Wherefore ye also, be ye ready, for in that hour that ye think not the Son of man comes.

2 Peter 3:10

But the day of the Lord will come as a thief, in which the heavens will pass away with a rushing noise, and the elements, burning with heat, shall be dissolved, and the earth and the works in it shall be burnt up.

Revelation 3:3

Remember therefore how thou hast received and heard, and keep it and repent. If therefore thou shalt not watch, I will come upon thee as a thief, and thou shalt not know at what hour I shall come upon thee.

Revelation 16:15

(Behold, I come as a thief. Blessed is he that watches and keeps his garments, that he may not walk naked, and that they may not 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
Watch therefore, for ye know not in what hour your Lord comes.
Matthew 25:13
Watch therefore, for ye know not the day nor the hour.
Zechariah 14:7
And it shall be one day which is known to Jehovah, not day, and not night; and it shall come to pass, at eventide it shall be light.
Mark 13:32
But of that day or of that hour no one knows, neither the angels who are in heaven, nor the Son, but the Father.
Acts 1:7
And he said to them, It is not yours to know times or seasons, which the Father has placed in his own authority;
1 Thessalonians 5:2
for ye know perfectly well yourselves, that the day of the Lord so comes as a thief by night.
2 Peter 3:10
But the day of the Lord will come as a thief, in which the heavens will pass away with a rushing noise, and the elements, burning with heat, shall be dissolved, and the earth and the works in it shall be burnt up.
Revelation 3:3
Remember therefore how thou hast received and heard, and keep it and repent. If therefore thou shalt not watch, I will come upon thee as a thief, and thou shalt not know at what hour I shall come upon thee.
Revelation 16:15
(Behold, I come as a thief. Blessed is he that watches and keeps his garments, that he may not walk naked, and that they may not see his shame.)