Ellen G. White discusses the prophetic period of the "2300 tardes y mañanas" (2300 days and nights) primarily in the context of the Millerite movement and the Adventist understanding of prophecy. Here is a relevant excerpt from her writings: "It was the discovery of the correct time, in connection with other scripture testimony, that led to the movement known as the midnight cry of 1844. And to this day the computation of the prophetic periods placing the close of the 2300 days in the autumn of 1844, stands without impeachment." (4SP 495.3) This passage explains that the 2300 days prophecy, found in Daniel 8:14, was understood by early Adventists to end in the autumn of 1844. This interpretation was central to the Millerite movement and the "midnight cry," which anticipated the return of Christ at that time. The "2300 days" are interpreted as 2300 years, a principle known as the day-year principle in prophetic interpretation. If you need more detailed explanations or additional references, please let me know! **References:** - White, E. G. (1884). The Spirit of Prophecy, Vol. 4, p. 495.3.