Thiele said that the 25th anniversary of Jeconiah's captivity was April 25 (10 Nisan), 573 BCE, implying that he began the trip to Babylon on 10 Nisan 597, 24 years earlier. His reasoning in arriving at this exact date was based on , where Ezekiel, without naming the month, says it was the tenth day of the month, "on that very day." Since this fits with his idea that Jeconiah's (and Ezekiel's) trip to Babylon began a month later than the capturing of the city, thus allowing a new Nisan-based year to begin, Thiele took these words in Ezekiel as referring to the day in which the captivity or exile proper began. He therefore ended Jehoiachin's reign of three months and ten days on this date. The dates he gives for Jeconiah's reign are then: 21 Heshvan (9 December) 598 BCE to 10 Nisan (22 April) 597 BCE.