It seems that Bible scholarship supports 1914
"The matter of Bible chronology had long been of great interest to Bible students. Commentators had set out a variety of views on Jesus’ prophecy about “the times of the Gentiles” and the prophet Daniel’s record of Nebuchadnezzar’s dream regarding the tree stump that was banded for “seven times.”—Luke 21:24, KJV; Dan. 4:10-17.
As early as 1823, John A. Brown, whose work was published in London, England, calculated the “seven times” of Daniel chapter 4 to be 2,520 years in length. But he did not clearly discern the date with which the prophetic time period began or when it would end. He did, however, connect these “seven times” with the Gentile Times of Luke 21:24.
In 1844, E. B. Elliott, a British clergyman, drew attention to 1914 as a possible date for the end of the “seven times” of Daniel, but he also set out an alternate view that pointed to the time of the French Revolution.
Robert Seeley, of London, in 1849, handled the matter in a similar manner. At least by 1870, a publication edited by Joseph Seiss and associates and printed in Philadelphia, Pennsylvania, was setting out calculations that pointed to 1914 as a significant date.
In the August, September, and October 1875 issues of Herald of the Morning, N. H. Barbour helped to harmonize details that had been pointed out by others. Using chronology compiled by Christopher Bowen, a clergyman in England, and published by E. B. Elliott, Barbour identified the start of the Gentile Times with King Zedekiah’s removal from kingship as foretold at Ezekiel 21:25, 26, and he pointed to 1914 as marking the end of the Gentile Times.
What is meant by the expression ‘Gentile Times,’ or “appointed times of the nations”? And how is it connected with God’s Kingdom? To answer these questions, let us take a more detailed look at Jesus’ words. He said: “Jerusalem will be trampled on by the nations [Gentiles], until the appointed times of the nations [Gentiles] are fulfilled.”—Luke 21:24.
What is meant by “Jerusalem”? It points to God’s Kingdom. How do we know? Ancient Israel was God’s chosen people from 1513 B.C.E. down to the first century of our Common Era. (Exodus 19:6; Matthew 23:37, 38) Jehovah organized them under a typical theocratic government, or God-rule. Jerusalem became the capital city. It was there that the God-anointed line of kings from David sat “upon Jehovah’s throne.” They ruled as kings for Jehovah. (1 Chronicles 29:23; 2 Chronicles 9:8) The Cyclopaedia by M’Clintock and Strong states: “Jerusalem had been made the imperial residence of the king of all Israel; and the Temple, often called ‘the house of Jehovah,’ constituted at the same time the residence of the King of kings, the supreme head of the theocratical state.”
When and how was Jerusalem trampled on by the Gentiles? The trampling began in 607 B.C.E. How? By the abrupt ending of the Davidic dynasty. King Zedekiah was dethroned and the city of Jerusalem destroyed by waves of invading Babylonians under Nebuchadnezzar. The Bible at Ezekiel 21:26, 27 foretold this breach in the Davidic line of kings by saying: “Lift off the crown . . . it will certainly become no one’s until he comes who has the legal right, and I must give it to him.” God’s rule was under restraint until “the appointed times of the nations” would end. Thus, the Gentile Times were a time period when the nations ruled without Jehovah God’s having a government to represent his rulership in the earth.
When the Gentile Times ended, Jehovah was to give the power to rule to the One “who has the legal right,” Jesus Christ. Therefore, 1914 would mark the time when Christ began to rule as King in God’s heavenly Kingdom, and since his rulership extends down to this day, it touches you