Q: WHAT YEAR DID JEHU’S REIGN END IN ISRAEL?
A: IT DEPENDS WHAT CALENDAR YOU ARE USING!
On the Gregorian calendar (the one you might have on your wall) the year was 799 BC.
On the Hebrew calendar, sometimes called the biblical calendar, the year was 3248 AM.
2 Kings 12:1 – In the seventh year of Jehu Jehoash began to reign; and forty years reigned he in Jerusalem. And his mother's name was Zibiah of Beersheba.