Matthew 2:7

Then Herod, quietly calling the Magi, diligently learned from them the time when the star appeared to them

Other versions

Then Herod, when he had privily called the wise men, enquired of them diligently what time the star appeared.

Then Herod summoned the wise men secretly and ascertained from them what time the star had appeared.

Then Herod called the Magi secretly and found out from them the exact time the star had appeared.