Table 2. Chronology of the Kings of Judah
(Dates are conjectural for Saul and David)

Some reign lengths are measured from the start of a coregency. Jotham's 16 (15) years ended when his son Ahaz was installed by the pro-Assyrian faction in Judah, in 735n/735t, although some considered him the rightful ruler until his death in 732t, thus giving him the twenty years mentioned in 2 Kgs 15:30. The comparison of col. 5 with the beginning and ending dates and with col. 6 shows that the court recorders of Judah always kept in mind the official starting year of a king and were exact in all their representations of his reign length.
KingBegan
coregency		Began
sole reign
Ended		Official
start and end		Years
reigned
Saul
David
Solomon		  
 
971t 		1051t?
1009t?
969t? 		1009t?
969t?
932t 		1051t-1009t?
1009t-969t?
971t-932t 		42?
40
40(39)
Rehoboam
Abijah
Asa		 932t
914n/914t
912t/911n 		914n/914t
912t/911n
871t/870n 		932t-915t
915t-912t
912t-871t 		17
3
41
Jehoshaphat
Joram
Ahaziah		 873t
854t
 		 871t/870n
848n/848t
841n/841t 		848n/848t
841n/841t
841n/841t 		873t-849t
849t-842t
842t-842t 		25(24)
8(7)
1(0)
Athaliah
Joash
Amaziah		 841n/841t
835n/835t
796n/796t 		835n/835t
796n/796t
767n/767t 		842t-836t
836t-797t
797t-768t 		7(6)
40(39)
29
Uzziah
Jotham
Ahaz		 791t
750n/750t
735n/735t		 767n/767t
740t
732t 		740t
(735n/735t) 732t
716t/715n 		791t-740t
751t-736t
732t-716t 		52(51)
16(15)
16
Hezekiah
Manasseh
Amon		 729t/728n
697t
 		 716t/715n
687t
643t 		687t
643t
641t 		716t-687t
697t-643t
643t-641t 		29
55(54)
2
Josiah
Jehoahaz
Jehoiakim
  		641t
609 Tammuz
609 Tishri
 		 609 Tammuz (Jul)
609 Tishri (Oct)
598 21 Heshvan
(about 9 Dec 598) 		641t-610t
610t-609t
609t-598t
  		31
3 mo.
11
 
Jehoiachin
 
Zedekiah
  		598 21 Heshvan
 
597 2 Adar
  		597 2 Adar
(Mar 17)
587 9 Tammuz
(Jul 27) 		598t
 
598t-588t
  		3 mo. 10 d.
 
11(10)
 
Explanation of the "Nisan/Tishri" notation used in these tables
931nThe year beginning on the first of Nisan (a spring month) of 931 BC. Regnal years were reckoned from Nisan 1 in Assyria, Babylonia, and Israel.
931tThe year beginning on the first of Tishri of 931 BC. Tishri is a fall month, 6 months later than Nisan. Regnal years were reckoned from Tishri 1 in Judah. Sabbatical years started on Tishri 1. Jubilee years started on Tishri 10.
931n/931tThe six-month period beginning Nisan 1 of 931 BC.
931t/930nThe six-month period beginning Tishri 1 of 931 BC.