The Life of Azariah

• Azariah ([Uzziah] King of Judah, son of Amaziah)

• Start — 2 Kings 14:21. The year of Azariah ([Uzziah] King of Judah, son of Amaziah)'s birth is the year his reign began (3170) - his age when his reign began (16) = 3154
• End — 2 Kings 15:2. The year of Azariah ([Uzziah] King of Judah, son of Amaziah)'s death (3223) is the year his reign ended = 3223

Years are anno hominis — counted from Creation as year 1 — which is the frame the source computes in. The arithmetic behind each boundary is given above rather than assumed.