What did Ellen say?
Soon we heard the voice of God like many waters, which gave us the day and hour of Jesus’ coming.
– Testimonies for the Church, vol. 1, Page 59
“No man knoweth the day nor the hour,” was heard from the hypocritical minister and the bold scoffer. Neither would be instructed and corrected by those who were pointing to the year when they believed the prophetic periods would run out, and to the signs which showed Christ near, even at the doors. Many shepherds of the flock, who professed to love Jesus, said that they had no opposition to the preaching of Christ’s coming, but they objected to the definite time. God’s all-seeing eye read their hearts. They did not love Jesus near. They knew that their unchristian lives would not stand the test, for they were not walking in the humble path marked out by Him. These false shepherds stood in the way of the work of God.
–Early Writings, page 233-4
That alone should be enough to lead people away from Ellen White.
What does the Bible say? What did JESUS say??
Matt 24:36 – But of that day and hour knoweth no man, no, not the angels of heaven, but my Father only.
Matt 25:13 – Watch therefore, for ye know neither the day nor the hour wherein the Son of man cometh.