And it was about the sixth hour, and there was a darkness over all the earth until the ninth hour. And the sun was darkened, and the veil of the temple was rent in the midst. And when Jesus had cried with a loud voice, He said,
“Father, into Thy hands I commend My spirit:”
and having said thus, He gave up the ghost.                        Luke 23:44-46

This event of the darkness happened around noon. Some commentators say that this was and solar eclipse. I tend to disagree, but cannot prove or disprove either way. I think the darkness was world wide; not just a local event, thus it would be a supernatural event. The Light of the world had just became sin for us (John 9:5; 2 Corinthians 5:21). He was taking the wrath of God upon Himself, for the sins of the world.

When the veil of the temple was torn in two, and right  down the middle from the top to the bottom God was showing that the way into the holiest of all places; the very throne of God was open for all who would believe coming to Him through the death of His Son on the cross, His burial, and resurrection.

Jesus in commending His spirit to the Father is not sending the Holy Spirit (though the spirit of Jesus Christ is holy), but His own human spirit. In His living spirit throughout His life as a Man He has been faithful to do His Father’s will, being sinless, spotless, without blot or blemish; holy unto the Holy One. In His spirit He has gone all the way to the sacrifice of Himself for sin, in obedience to His Father. Now, as He is near to death of the body, He sends His eternal spirit back to the Father who gives spirit to all of Adam’s race.

When we realize our lostness, our condemnation, the guilt of our sins and realize that we need a Savior, and only Jesus Christ can save us; we can call out to Him in faith, believing Him, asking forgiveness, and He hears, He saves and gives us eternal life.