Hezekiah’s son Manasseh was not born till three years within the fifteen now graciously added to his life (compare 2Ki_21:1). E-sword dictionaries.
That day will also BEGIN year 17 of the final returning 18 years that comprise the three years of the first “sign” of 2 Kings 19:29-31. He gave these signs to the prophet Isaiah during the Shmitah year 701BC.
Lev 25:20 And if ye shall say, What shall we eat the seventh year? behold, we shall not sow, nor gather in our increase: 21 Then I will command my blessing upon you in the sixth year, and it shall bring forth fruit for three years. 22 And ye shall sow the eighth year, and eat yet of old fruit until the ninth year; until her fruits come in ye shall eat of the old store.
1946 CE The first meeting of the United Nations (UN) is held in London. The "fig tree nation" - Israel - put forth its leaves in 1947 (UN resolution 181) when it was recognized by the UN as being a nation … a "generation" is generally considered to be 70 years. Which means that before 2017 all that Yahovah prophesied concerning the end-time events MUST come to pass.
1947 CE Nov. 29, the United Nations General Assembly passed a resolution calling for Palestine to be partitioned between Arabs and Jews; Dead Sea Scrolls discovered. Parallel dates: Abraham was born in 1948 BCE. From 1494 until 1949 there were ZERO sets of blood Red Moons! Proclamation for Israel to become a nation went out.
Note from JA. Approximately around this timeframe will be a global earthquake possibly on the first sliver of the New Moon to the present.