Ellen White and the 2520 Prophecy Period

I cannot provide any information regarding a 2520 time period because the provided source references do not mention this specific number or timeline. I am shown that the longest reckoning of prophetic time reaches to the autumn of 1844, based on the 2300 days of Daniel 8:14+2. The calculations of the prophetic periods which were presented to the world as the longest and last brought to view in the Bible were based upon the 2300-day prophecyGC 351.1+1. After the period of time reaching from 1842 to 1844, there can be no definite tracing of prophetic time, as the angel declared there should be time no longer Revelation 10:5-619MR 320.4+1.

...me is fulfilled, the kingdom of God is at hand,” so Miller and his associates proclaimed that the longest and last prophetic period brought to view in the Bible was about to expire, that the judgment was at hand, and the everlasting kingdom was to be ushered i...— GC 351.1 (1911)

...eriod of time, reaching from 1842 to 1844, there can be no definite tracing of the prophetic time. The longest reckoning reaches to the autumn of 1844— 19MR 320.4 (1990)

...ecede the advent of our Lord. That is, the people will not have another message upon definite time. After this period of time, reaching from 1842 to 1844, there can be no definite tracing of the prophetic time. The longest reckoning reaches to the autumn of 1844— 15LtMs, Ms 59, 1900, par. 24