Close of Probation not revealed to men by man.

God has not revealed to us the time when this message will close, or when probation will have an end. Those things that are revealed we shall accept for ourselves and for our children; but let us not seek to know that which has been kept secret in the councils of the Almighty. It is our duty to watch and work and wait, to labor every moment for the souls of men that are ready to perish. We are to keep walking continually in the footsteps of Jesus, working in His lines, dispensing His gifts as good stewards of the manifold grace of God. Satan will be ready to give to anyone who is not learning every day of Jesus, a special message of his own creating, in order to make of no effect the wonderful truth for this time.  {1SM 191.1} 

Letters have come to me asking me if I have any special light as to the time when probation will close; and I answer that I have only this message to bear, that it is now time to work while the day lasts, for the night cometh in which no man can work. Now, just now, it is time for us to be watching, working, and waiting. The Word of the Lord reveals the fact that the end of all things is at hand, and its testimony is most decided that it is necessary for every soul to have the truth planted in the heart so that it will control the life and sanctify the character.1SM 191.2

The Spirit of the Lord is working to take the truth of the Inspired Word and stamp it upon the soul so that the professed followers of Christ will have a holy, sacred joy that they will be able to impart to others. The opportune time for us to work is now, just now, while the day lasts. But there is no command for anyone to search the Scriptures in order to ascertain, if possible, when probation will close. God has no such message for any mortal lips. He would have no mortal tongue declare that which He has hidden in His secret councils (RH Oct. 9, 1894).  1SM 192.1

The world placed all time-proclamation on the same level and called it a delusion, fanaticism and heresy. Ever since 1844 I have borne my testimony that we were now in a period of time in which we are to take heed to ourselves lest our hearts be overcharged with surfeiting and drunkenness, and cares of this life, and so that day come upon us unawares. Our position has been one of waiting and watching, with no time-proclamation to intervene between the close of the prophetic periods in 1844 and the time of our Lord's coming. We do not know the day nor the hour, or when the definite time is, and yet the prophetic reckoning shows us that Christ is at the door.  {10MR 270.1} 

Christ gave to his disciples truths whose breadth and depth and value they little appreciated, or even comprehended, and the same condition exists among the people of God today. We too have failed to take in the greatness, to perceive the beauty of the truth which God has intrusted to us today. Should we advance in spiritual knowledge, we would see the truth developing and expanding in lines of which we have little dreamed, but it will never develop in any line that will lead us to imagine that we may know the times and the seasons which the Father hath put in his own power. Again and again have I been warned in regard to time-setting. There will never again be a message for the people of God that will be based on time. We are not to know the definite time either for the outpouring of the Holy Spirit or for the coming of Christ. – {RH March 22, 1892 Par. 7}

The Study of Daniel 12 is about Character

The people of God need to study what characters they must form in order to pass through the test and proving of the last days. Many are living in spiritual weakness and backsliding. They know not what they believe. Let us read and study the twelfth chapter of Daniel. It is a warning that we shall all need to understand before the time of the end. There are ministers claiming to believe the truth who are not sanctified through the truth. Unless a change comes in their lives, they will say, "My Lord delayeth His coming."   {15MR 228.2} (1903)

Ellen White on 1335

We told him [Brother H] of some of his errors in the past, that the 1335 days were ended, and numerous [other] errors of his.--Letter 28, 1850, pp. 1-3

When did those days end? Evidences are conclusive that the 1335 days ended with the 2300, with the Midnight Cry in 1844. Then the angel [Rev.x,1-6] swore that time should be no longer. Time here cannot mean duration, as measured in months and years, for 1000 years are measured after this; but it must refer to prophetic time, which was the burden of the angel's message. As Daniel was to stand in his lot at the end of the days, we must conclude that the judgment of the righteous dead commenced at that time, and has been progressing more than twelve years. James White, RH January 29, 1857