Q: WHAT YEAR DID SOLOMON BEGIN BUILDING THE TEMPLE?
A: IT DEPENDS WHAT CALENDAR YOU ARE USING!
On the Gregorian calendar (the one you might have on your wall) the year was 956 BC.
On the Hebrew calendar, sometimes called the biblical calendar, the year was 3091 AM.
1 Kings 6:1 – And it came to pass in the four hundred and eightieth year after the children of Israel had come out of the land of Egypt, in the fourth year of Solomon's reign over Israel, in the month of Ziv, which is the second month, that he began to build the house of the Lord.
2 Chronicles 3:2 New King James Version (NKJV)
2 And he began to build on the second day of the second month in the fourth year of his reign.