The clocks symbolise the restoration of time. God is able to restore lost opportunities, finance, health and youth. He promises to restore lost time. By His hand, He is able to make the old become new again.
God gave Abraham and Sarah their promised child in their old age. This reminds me of my own story, where my father (whose Christian name is Abraham too) and mother waited almost ten years to receive God’s gift of a child (me!) to them. We are Abraham’s seed and heirs according to God’s promise in the Bible.