God is in time, since He interacts with His creation and His creatures from moment to moment. But God must transcend time, or He is limited by another entity: time. In other words, God's eternity means that He is distinct from time. Nevertheless, He is not completely separate from it; rather, He is present (immanent) in every moment, controlling every moment for His purposes and glory… God is fully present with every moment of time, and He knows its entirety and its succession of moments. But God is never subject to time. Rather, He uses it as His servant to reveal His perfections.
John MacArthur