1) Time is a gift from God that we will have to account for. The average person lives 70 years with 408,800 hours of awake time, yet most Christians only spend around 8 days per year in religious activities.
2) We will be judged based on how we use our time on Earth. At the judgment, unbelievers will be cast into hell while believers will have their works judged to receive rewards or loss.
3) God can trust those who are faithful with small amounts of time to also be faithful with greater responsibilities. Being a good steward of time on Earth affects one's eternity.