The reign of Pekah

• Pekah

• Start — 2 Kings 15:27. The year Pekah's rival reign with Menachem as king over Israel began is the same year as Menachem's reign began = 3210
• End — 2 Kings 15:27. The year Pekah's reign ended is the year his reign began (3210) + the length of his reign (20) + 1 year for the the accession-year undercount = 3231

Shulman, p125

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.